Wraith

Where most other antagonist roles exist to make you afraid of some maniac with a fire extinguisher coming to get you, the Wraith exists to make you afraid of the station itself. Whether it's malevolent poltergeists with a mean streak a mile wide, otherworldly creatures hunting you from the dark, or plagues of rot and grime that will make medical look clean, wraiths have a wide array of spooky powers they can use to terrorize (or annoy) the crew. Given enough time and corpses (and given all the other baddies they appear with on Space Station 13, there will be corpses), they can progress from an inconvenience to a terrifying juggernaut of murder. They have their downsides, though, and a clever chef with some salt can be far more dangerous to a wraith than an army of supercops armed to the teeth.

Base Wraith Abilities

First and foremost, wraiths are ghosts. They cannot be seen by the living unless manifested, they can hear everything on the station, they can talk to and see normal ghosts, fly through walls, all of it. They can use their powers while incorporeal as well, and are effectively invulnerable in this state. When wraiths use the Haunt ability or float over salt, they manifest in a physical form for about minute, able to be injured and even killed.

If killed while manifested, though, a wraith isn't necessarily dead. Wraiths can survive being banished from physical form once - the second time kills them for good. Moreover, there's strings attached: when banished, they lose all of their built-up WP and, far more cripplingly, any WP regeneration bonuses from Absorb Corpse. The consolation prize is that Absorb Corpse's cooldown is reset as well.

Wraiths can also move items by click-dragging them from one tile to another, similar to the Telekinetic Pull genetics ability. This can not only do minor damage depending on the flung item, but also set up dangerous animated/possessed item rampages if left unnoticed.

Wraith abilities work off the creatively named Wraith Points, or WP, a resource that passively increases over time. The rate of regeneration can be permanently increased by absorbing corpses, or temporarily increased by using Haunt near a crowd or possessing a Revenant. There's no upper limit to banked points or regeneration rate, but banishment resets both.

Listed below are the basic abilities a wraith is granted before choosing one of the three paths, and will be maintained once the new path is chosen. Alterations to any base powers will be listed in its appropriate section.

Icon	Name	Cooldown	WP Cost	Description
	Haunt	60 seconds	0 Points	Temporarily become corporeal to scare people and/or gloat. This ability will remain active until used again, with the second use returning you to your incorporeal state. Every witness present gives you an increased rate of WP regeneration.
	Whisper	2 seconds	1 Point	Send a spooky ghost message to somebody, which they hear as "A netherworld voice whispers in your ear..." This, alongside Blood Writing, is your only way to communicate with the living.
	Blood Writing	0 seconds	2 Points	Draws a single letter or pictogram of your choice on tile, complete with fancy animation.
	Absorb Corpse	45+ seconds	20 Points	Skeletonizes a targeted corpse in a cloud of black smoke with a big red message, and permanently increases your rate of WP regeneration. Must be used on a relatively fresh corpse. Cooldown starts at 45 seconds and scales exponentially with each use, but is reset by banishment. Doesn't work when the corpse has at least 25 units of formaldehyde inside it, instead removing it from the corpse and activating the cooldown.
	Spook	30 seconds once activated	20 Points to Mark	The first use Marks an area, and the second use lets you choose a spooky thing to do to that area: Flip light switches: Self-explanatory. Light switches that are on turn off and off on. Burn out lights: Breaks up to four light tubes and bulbs in the area, creating sparks that can ignite flammables. Create smoke: Creates multiple clouds of smoke near you that can completely obscure people's vision and make them drop whatever they're holding. Clouds persist for about a minute. Create ectoplasm: Spawns a few globs of ectoplasm in the area. Sap APC: Drains a bit of power from the area's APC. The higher your WP regen rate, the more power drained. Cannot drain multiple APCs. Haunt PDAs: Everyone in the area gets cheesy spooky PDA messages with you as their sender. Open doors, lockers, crates: Opens and closes a few random doors, lockers, and crates in the area. Random: Does one of the above.
	Decay	60 seconds	30 Points	An ability with two different functions: Used on living humans, it drains a significant amount of stamina. Used on inanimate objects, it EMAGs them if possible. You cannot use this on cyborg frames (so no emagged borgs), which are specifically excluded from this ability.
	Command	20 seconds	50 Points	Hurls a few nearby loose objects at the chosen target.
	Animate Object	30 seconds	100 Points	Causes an object to come to life and try to murder anything and everything nearby.
	Possess Object	150 seconds	300 Points	Puts your consciousness inside an object for a limited time, letting you fly it around and use it to murder people, all while taunting them (somehow).
	Evolve	0 seconds	150 points	Once three corpses are absorbed, the Evolve ability can be used to pick one of the three evolution paths: Harbinger, the summoner. Plaguebringer, the rot. Trickster, the illusionist. Note: The three corpse's absorbed requirement will not be required to evolve during the Disaster gamemode.

Wraith Paths

Past the basic wraith form, three unique paths are available in the form of an ability in its original power set. Each has their own ability set granted on top of the base wraith's, allowing for different styles of gameplay. The different forms also have their own weaknesses to go along with their individual strengths.

Path 1: The Harbinger

This particular path focuses on summoning, with most of its additional abilities being dedicated to raising the dead or void-like beings. They can be identified through their summons, listed below.

Icon	Name	Cooldown	WP Cost	Description
	Raise Skeleton	60 seconds	100 Points	Commands the skeleton inside a corpse to detonate out and free its brothers still trapped in the living. By murdering them. Best used in combination with Absorb Corpse, because only completely decomposed cadavers can be raised as skeletons. This ability can also be used on closets, spawning one skeleton per closet.
	Create Void Portal	180 seconds	150 Points	Creates a summoning circle that slowly grows in power. Each mob has different point weighting, which can be seen below. Bats: 3 points Skeletons: 4 points Crunched: 4 points Shades: 4 points Monstrosity crawlers: 4 points Lions: 5 points Ancient repairbots: 6 points Ancient things: 7 points Bears: 10 points Brullbars: 15 points Heavy gunner drones: 15 points As the power of the portal increases, the number of mobs able to spawn will also increase, capping at a total of 30 portal points. Power is gained over time in increments of 5, starting off with a base of 10 points.
	Summon Void Creature	150 seconds	400 Points	Sends a request to ghosts of players to join and offers a choice between three creatures to pick from, meant to aid the harbinger: Skeleton commanders: A tanky mob with a long range stab, a sweeping strike, a raise minor skeleton ability, and a rally ability buffing nearby critters. Tentacle fiends: A lower health, ranged mob with a tentacle hook to bring people to them, and a "lash" usable on disabled people to keep them on the ground and cause a lot of bleeding damage. Void hounds: A fast, sneaky mob with a leap that stuns targets for a short time, a cloak making them semi-transparent, and a strong lacerating arm. Lower health than the former two summons.
	Raise Revenant	300 seconds	1000 Points	Allows you to possess a corpse and empower it as a Revenant, so you can murder people with their co-workers. Must be used on a relatively fresh corpse.
	Speak to Summons	0 seconds	0 Points	Allows the Harbinger to speak to player summons that have spawned.

Path 2: The Plaguebringer

The Plaguebringer path is a debuff and poison based path with a large array of abilities. This path could be more difficult to identify in early stages, but has some unique summons and mechanics that can make the Plaguebringer easier to spot and counter.

Icon	Name	Cooldown	WP Cost	Description
	Curse of Blindness	45 seconds	40 Points	When inflicted with this curse, the affected will experience gradual eye damage over time in small increments of 10. Eventually fully blinds them if not cured.
	Curse of Weakness	45 seconds	40 Points	Causes regular slowdowns in movement of the afflicted being, as well as drowsiness and reduced stamina regeneration.
	Curse of Blood	45 seconds	40 Points	Curses the target with the hemophilia trait, resulting in severely increased blood loss from wounds. The afflicted will also experience random puking of blood.
	Curse of Rot	45 seconds	40 Points	Makes the afflicted vomit at random intervals, and prevents them from consuming any food.
	Curse of Death	45 seconds	80 Points	The final, brutal curse that can be placed on a being once all four prior curses have been placed on them. Once afflicted, the target begins to shake and be ripped apart. The curse completes once the target gibs, releasing a large amount of miasma. Counts as a consume, increasing point generation.
	Defile	50 seconds	50 Points	When this ability is used on a food item or container, it will inject 10u of a deadly chemical of your choosing; the possible options are listed below. Though it cannot be used directly on a living being, a strategic Plaguebringer could lay low and poison an item as it is served at the bar. Bee Cyanide Grave dust Loose screws Mucus Rat spit Rotting
	Summon Plague Rat	300 seconds	0 Points	When used, prompts ghosts for a chance to respawn as a plague rat. These plague rats spawn in their weakest form with three abilities - one for eating filth and gibs (Eat filth), one for a biting a target with small dose of rat spit (Bite), and one for moving down disposal pipes (Get in the disposals). The rat can increase in size by using their Eat filth ability. Diseased Rat: The beginning stages of Rat. It (along with its larger siblings) can consume "filth", which consists of blood, puke, food waste, or grime left around. The squishiest of the three rats. Plague-ridden Rat: A slightly larger rat, not yet reached its true potential. However, this rat has a new Summon rat den ability, a mess of garbage that spits out hostile rats and heals nearby existing plague rats. One warren can be spawned per plague rat existing. Bloated Rat Mass: The beefiest rat in terms of health and damage, with the trade off of no longer being able to fit through doors or under tables. The Rat Mass gains a more powerful arm and the Slam ability.
	Create Rot Hulk	90 seconds	120 Points	Checks the surrounding area for cleanable messes such as blood, vomit, fungus, etc. to summon a condensed mass of filth. The rot hulk will chase and attack people near them, exploding when killed or low health in a shower of poisoning gibs. The hulk is stronger if there is more filth around.
	Speak to Summons	0 seconds	0 Points	Allows the Plaguebringer to speak to player summons that have spawned.

Path 3: The Trickster

The Trickster path is a more stealthy path that is aimed to trick, confuse and terrify the crew with their range of abilities. This path could be difficult to identify early, but listening for out of place sounds and watching out for crew behaving oddly can make the Trickster easier to spot and counter.

Icon	Name	Cooldown	WP Cost	Description
	Trickster Haunt	30 seconds	0 Points	Upon selecting Trickster, the standard Haunt Ability is enhanced. Along with the WP gain, Trickster gains Possession Points which allows the use of the Possession ability. Trickster can also take the form of any player using the "Choose Haunt Appearance" ability.
	Choose Haunt Appearance	0 seconds	0 Points	Allows the Trickster to target and take on the appearance of any human target. The target can be alive, dead, missing any number of limbs/head, or any mutantrace.
	Mass Whisper	10 seconds	5 points	Allows the Trickster to send a message to every player in their vicinity.
	Creeping Dead	60 seconds	80 points	Curses the target with the "Creeping Dread" status. Has no effect on targets that remain in lit up areas, but the effects becomes more detrimental the longer the target stays in the dark. Causes shakes, hallucinations and minor damage, and eventually develops into a heart attack if the target remains in the dark for too long.
	Hallucinate	45 seconds	30 points	Causes the target to experience Hallucinations. These Hallucinations can range from hearing explosions, hearing fake announcements, and seeing blood pour from the walls.
	Fake Sound	4 seconds	5 points	Allows the Trickster to play a sound from a given list at a specific location.
	Rune Trap	30 seconds	50 points	While manifested, allows the Trickster to deploy a one use floor based trap that activates when a person runs over it, and can be avoided when walked or crawled over. The trap is invisible in the dark, but visible in the light, and can be broken with melee. The selectable effects that occur when a trap is triggered are: Madness: Doses the player with 8u of Rajaijah. Burning: Minor explosion centred on the player. Teleporting: Teleports the player to a random spot within a 10 tile diameter. Illusions: Inflicts the player with hallucinations, similar to those inflicted via the Hallucination ability. EMP: Triggers an EMP around the player, ruining electronics. Blinding: Stuns the player for 4 seconds. Sleepyness: Doses the player with 15u of haloperidol and inflicts the Drowsy status for 30 seconds.
	Possession	180 seconds	400 points	Allows the Trickster to gradually takeover and Possess a Target for 60 seconds. The Target cannot handcuff themselves while you're trying to Possess them, so they cannot cuff themselves pre-Possession to obstruct whatever fiendish fate you have in store for them. The Trickster must have accumulated 50 Possession Points before being able to possess. Possession Points are accumulated via using Haunt.
	Make Poltergeist	300 seconds	600 points	When used, prompts all Ghosts with the option to become a Poltergeist. Abilities detailed in their own section below. On the Roleplay servers, there's a maximum of two Poltergeists per Trickster.

Poltergeists

Basically, mini-wraiths. When this ability's used, it sends a prompt to all eligible Ghosts asking if they want to be a poltergeist; the criteria as same as the one for random event antags (i.e. not DNR, not logged out), but it doesn't accept dead Antagonists. Shortly thereafter, the game then randomly picks from those who accepted the offer and spawns them as a poltergeist with randomly-generated names like "Lritho the Trickster" and snazzy animations. Poltergeists are considered antagonists, and they should follow the orders of their master, the wraith that spawned them.

Poltergeists function much like wraiths. They can pass through walls and other solid objects but can't see through walls, and if they past over a salt pile, they'll get manifested. The wraith telekinesis passive is passed down to poltergeists, which allows them to throw items that they are near, although they will only go one tile if the Poltergeist is not adjacent to the item being manipulated. They also get the following Wraith abilities:

• Animate Object
• Blood Writing
• Command
• Decay
• Haunt (slightly different in that it manifests them for 15 seconds, rather than 30)
• Spook
• Whisper

Poltergeists can also click on their master to automatically follow them, still being able to use their abilities as if they were still at their anchor beacon and having better point generation.

Poltergeists also have one unique ability called Retreat, which will allow the poltergeist to immediately fall back to either their Wraith master or their anchor. This costs 100 WP to do.

Aside from Haunt having shorter duration, these abilities are otherwise same as the Wraith versions, i.e. same cooldown, same point cost, and same functionality. Notice they have no Raise Skeleton, no Absorb Corpse, no Possess Object, and no Raise Revenant.

If a poltergeist strays 15 tiles from the portal or 12 tiles from the Wraith that spawned them, they take damage up to 50% of their health as well as not being able to cast certain abilities. Unlike the Wraith, they can only die once; one death and they're back to being a regular Ghost.

Revenants

A Revenant is a telekinetically controlled corpse-puppet used by wraiths to step their game up from dangerous pranks to full-throttle massacres. Wraiths inhabit fresh corpses to create revenants, which provide them with a physical body to interact with the world freely. This allows for a much, much broader ability to screw with the station, as a wraith can temporarily do anything a normal traitor could, like mixing up horrible concoctions at a chemistry machine or rigging giant bombs.

Revenants enjoy an increased rate of WP regeneration, stun immunity, ignore stamina penalties, lose their normal set of powers, and gain a smaller, much deadlier set while active. However, they constantly lose health and cannot be healed, so your time is limited. Visually, revenants are easily identified by their distinct sinister black aura, and upon "death", they dissipate into black smoke.

Icon	Name	Cooldown	WP Cost	Description
	Push	30 seconds	50 Points	Shoves the targeted victim or object away from you, dealing damage if they collide with something.
	Mass Command	30 seconds	300 Points	Like Command, only it throws a LOT more nearby objects at the target.
	Shockwave	30 seconds	750 Points	Emits a large shockwave that knocks people down, destroys windows, and strips the plating off nearby walls and floors.
	Touch of Evil	30 seconds	1000 Points	Temporarily gives you an ENORMOUS damage buff to punches, and punches knock people across the room.
	Crush	60 seconds	2500 Points	The target immediately collapses and begins to take a huge amount of brute damage over time as their bones crack and their body implodes. The victim explodes into gibs once this damage becomes lethal, but the process is interrupted if they are removed from your line of sight or you move (or are moved).

Being the Ghost with the Most (Evil): Wraith Tips and Strategy

In General

• You are not invincible, no matter how much it may seem like it sometimes. It only takes one twitchy guy with a weapon in his backpack and a salt shaker to ruin you.
• There exists at least one free corpse on the station every round. Eat it first!
• Wraiths don't appear alone, so try to lay low for a little while and look for the other antagonists. Scavenge the corpses they'll inevitably leave in their wake for more WP regeneration, or try to strike deals with them with Whisper. A wraith with someone to feed it a steady stream of corpses can get very, very scary, but be warned that some antagonists might not trust you to not murder them and raise the alarm on you.
• Plan for things going terribly. You may not want to absorb every corpse you find just in case you get banished, but you may not want to leave any corpses undrained either in case the crew gets wise and starts spacing/gibbing/reclaiming corpses immediately.
• You're not that great at outright killing people without isolating someone or being lucky. Be a scavenger; try to make a bad situation worse for someone already pretty fucked up rather than try to kill a healthy person. The crew will amaze you with how many ways they can kill themselves.

Making the Most of Base Abilities

• You can't use Decay on a Cyborg to remove its laws, nor can you use it on a cyborg frame to make the borg it's built from have no laws.
• Use Decay on Beepsky and on his victims if they try to run. Watch the fireworks.
• With Decay you are able to emag stuff without the usual risk of being seen by others, and that can be extremely helpful for setting up traps and ambushes. For example, using Decay on a phone causes it to ring even when there's no caller on the other side and rigs it to explode when picked up, tearing holes in the station and depriving humans of their precious air.
• Haunt can give you a ton of WP when used in a large crowd, but a large crowd is also in prime position to wreck you when you're at your most vulnerable. Try haunting just out of reach of a few people, like behind a table, window, or door, or in space nearby. Not only is it effective, but also it annoys the shit out of people! Just make damn sure the AI won't open the door for them, or that they won't zap you with lasers through the windows.
• Whenever someone has a gun drawn, use Command to knock them down, immediately use Possess Object on the gun, and shoot them with it.
• Use Command to throw exploding tomatoes. They will chain-reaction and destroy the entire stack, and Botanists will fucking hate you (the ones you don't kill with a possessed chainsaw immediately after, that is).
• If someone is making loaves, wait for them to make a high-tier one and Command it at them for an effectively instant kill.
• Is the chaplain pissing you off? Command and Mass Command may not work on them when you click them directly, but if they're stunned, standing still, or distracted by animated objects, targeting the floor under them works just as well.
• Spook may seem harmless, but some cunning applications can save your ass or cause mass chaos in a clutch. For instance: try using Possess Object on the fire extinguisher in Toxins Storage, bashing open a plasma tank, then using Spook to pop a few light bulbs.

Using Possess Object

• Any object that can deal damage can be used to attack a human. ANY object.
• Any object that can interact with other objects by being used on them can be done with a possessed item. Be careful, inserting something into something else will kick you out.
• Any object that can be used by clicking on it can be activated by clicking yourself (if that fails use Page Down or whatever "use item in hand" is). You can be a self-playing saxophone... or a self-detonating grenade/pipe bomb.
• You ignore salt while possessing an item (or a Revenant). In fact, as a possessed item, you can scuff up salt piles on the floor, removing them.
• Engineers or QMs massing lasers to deal with you/another antagonist? Possess one and laugh with sadistic glee when you realize it can still shoot things.
• If you possess food or drinks, you can force-feed yourself to people. Let the chef know what people REALLY think of his cooking.
• You can talk as a possessed item, and if you possess a radio headset or station-bounced radio, you can talk over the radio! Gloat and crackle like a supervillain to those lowly mortals without any fear of the retaliation a regular mortal villain would receive.
• You can manually leave the item by clicking the red X in the corner. Good for a quick possession and then abandoning the item so you don't get caught.
• You can use Possess Object on AI law modules. You cannot change the law written on it, but you can upload whatever law was written on it simply by clicking on a lawrack. The applications of this should be immediately obvious.

Path-Specific

For Harbingers

• The skeleton from Raise Skeleton is extremely fragile, and will die in one hit to just about anything, but is incredibly strong and knocks people down very easily. Use it to gang up on someone who can't fight back.
• As stated before use Absorb Corpse and Raise Skeleton powers to get both increased WP regeneration AND a loyal servant that will gladly help you find more corpses to consume/resurrect.
• Skeletons don't like to be inside lockers. If you summon a bone boy in one they will kick it open. If they can't for some reason (e.g. the locker is card locked), they will then proceed to beat it until it falls apart. You can use this to expose some sensitive equipment for other antags to steal or to create delayed traps.
• You can't summon a portal unless you are materialized, so make sure that a random staff assistant doesn't find you the moment you prepare to open one.
• Creatures aren't summoned directly on the portal tile but instead spawn in an area around it. You can exploit this by putting the portal in a out of reach area and having your summons appear beyond the obstacle.
  • Bonus points if it is in a single tile surrounded by walls as monsters will be summoned on the other side, confusing/scaring everyone as horrific monsters will appear all around them with no discernible source.
• Monsters with stamina draining attacks like Brullbars work fantastically with Decay. If a security officer is fighting them, use the ability then laugh with pleasure as they are stunned and ripped to pieces by the abomination.
• Revenants get faster WP regeneration, but their abilities still cost a shitload of points. Try to raise a decent buffer of points and regeneration before going nuts with a revenant instead of beelining for the first corpse you see the second you hit 1000 points.
• Shockwave gives Mass Command tons of scrap metal and broken glass to hurl at people.
• Use the Summon Void Creature ability often. Dead players are usually bored out of their minds and will take any chance to cause some chaos.
• It takes a while to summon the void creature, and it is very visible, so avoid doing this too close to your target, or they will just run away.

Ghostbustin': Fighting a Wraith

General Wraith Weaknesses

Haunt heavily incentivizes manifesting near a bunch of people to get an extra infusion of WP, and a physical Wraith is extremely vulnerable. They are slow, have no hands, and have only their basic powers to fight back against someone who wants them dead. A barrage of laser fire will banish a corporeal wraith very quickly.

Wraiths can only survive a single banishment - going down a second time permanently puts them out of commission. Moreover, getting banished wipes away all their Wraith points and any WP boosts from absorbing corpses. Banishment also resets the Absorb Corpse cooldown, as consolation for the wraith, but if you make sure there fewer usable corpses around, they may not have a second chance to get as strong as their first manifestation.

Salt

Wraiths are slippery bastards, but like proper ghosts, have one major weakness: regular ol' table salt. Lines of salt on the ground force an incorporeal wraith that passes over them to manifest, and so can be used to protect chokepoints, force a wraith into a trap, and trip up a wraith that's not paying attention to where they're going.

It should be noted, however, that salt lines can be disrupted by bungling idiots running across them, giving the wraith a chance to sneak through. Walking does not scuff up a tile full of salt. Would-be ghostbusters are well advised to lay their salt lines across walls, with redundant layers, and/or in low-traffic areas. Make sure to alert people to the importance of using the walk intent on salt while beating the bejesus out of politely reprimanding those who don't listen.

Spirit Candles

In the event you encounter a particularly evasive Wraith who navigates your salt lines, there is another option: spirit candles. These spooky decorations have a very effective power against incorporeal ghosties - when lit, the spirit candle lights up a 12 by 12 tile area in which a hidden Wraith or Poltergeist can be seen. Once you spot them within the spirit candles' effect, you can then use it inhand to completely manifest them into corporeal form, allowing for a good smacking from your local chaplain or anyone with a fire extinguisher. Be wise with your usage, they can only do this once per skull.

The Chaplain

The chaplain enjoys immunity to many of a wraith's tricks, which lets them fight on even footing with an opponent that otherwise fights very dirty. Chaplains still need to rely on ambushing a wraith using Haunt or luring them over salt, but once a Wraith is manifested, they can beat the bejesus out of it with their bible to banish it with the speed of lasers. They can even fight toe to toe with Revenants, as they can't be Crushed, knocked or Pushed back, knocked down with Shockwave, and can use the bible to deal large amounts of damage. A Wraith's best bet against a particularly relentless chaplain is to use ghostly mobility to go spook people somewhere the chaplain isn't, and failing that, take merry advantage of the fact that the chaplain's immunities don't cover them from indirect methods of attack.

Proper Corpse Handling

Consider also whipping up several batches of formaldehyde as well. When over 25 units is injected into a body, not only will it prevent decomposition, but when a Wraith attempts to use Absorb Corpse on it the effect will fail, removing the formaldehyde from the body and making harmless white smoke. Keep in mind however that formaldehyde will not prevent a Wraith taking control of a body as a revenant.

Specific Paths

Countering a Harbinger

Because most of the Harbinger's damage is physical, wearing armor while combatting it can strongly benefit you. A good melee weapon can do the trick against both it and its summons - just be sure not to let the void hounds and tentacle fiends get hold of you. Securing the area around the Harbinger's void portals would also be in good interest, both to keep unprepared crew out and the dangers emerging from the portal in.

As for revenants, for all their horrifying power when given sufficient WP to fuel their mojo, they are still rotting corpses. They're slow and incredibly obvious, and will eventually fall apart into a pile of bones even if left alone. That said, they're still superb at murdering isolated people because of Push, Touch of Evil, and Crush and can handle small crowds with Mass Command and Shockwave. Unless you're a particularly gutsy chaplain, getting into a fistfight with a revenant is an incredibly bad idea - running away and firing lasers or buckshot wildly is a far more effective strategy. Try to get the AI to lock it down in an isolated room if possible, and pray it doesn't have the WP reserves to just blast a hole through the walls and doors anyway. When in doubt, run for your life, because anybody who gets killed by the revenant (except victims of Crush) is leaving a corpse behind that will fuel the wraith if left alone.

Countering a Plaguebringer

The enemy to this wraith path are janitors, chaplains, or anyone with a mop and a chemical dispenser. Plaguebringers and their plague rat summons rely on filth to grow, so a bottle of space cleaner can go a long way. When encountering curses, a splash of holy water or bible beating can cure an afflicted person. In addition, a Plaguebringer cannot curse a person standing within the chapel. As with the base wraith, salt lines will force them to manifest.

A Plaguebringer is also unable to consume any corpse that is not yet rotten or inflicted with 60 tox damage, meaning keeping corpses reclaimed or embalmed can help keep this path at bay.

Countering a Trickster

Trickster is at its strongest when there is plenty of darkness to go around as a lot of their abilities rely on darkness to be fully effective. Keeping the station well lit by replacing broken lightbulbs/tubes, having Quartermasters order a huge amount of candles, and making sure that the Engineers are doing a good enough job keeping the station supplied with power will prevent a Trickster from effectively using a portion of its kit.

A Trickster also needs to be manifesting with Haunt frequently to get the most use out of its Possession ability. An attentive crew looking around for people acting strangely, such as those walking around not interacting with anything, should be able to spot who is real, and who is the Trickster. If you're unsure, a quick toolbox to the face will kick the Trickster out of its mimicked form and reveal it for a full 30 seconds.