Void Fiend

The  is a playable character in Risk of Rain 2, added in the Survivors of the Void expansion.

It is an eldritch, void-mutated monstrosity capable of harnessing the Void as a lethal weapon. In battle, its corrupted energy builds up until it reaches a critical point, unleashing its full power and transforming it and its abilities into more aggressive versions.

Its name is stylised in-game as 「V??oid Fiend』.

Tips

 * Even if the Void Fiend collects Heresy items to change its skills, it will always use its standard corrupted skills when transformed (unless it transforms into the wholesale, losing the Void Corruption passive). This means that Corrupted Drown can never set up Ruin stacks, despite its high rate of fire.
 * If you're prudent about using Suppress whilst traversing a stage, you can make sure that you're just about to reach 100% Corruption when activating the Teleporter.
 * Releasing a fully charged Flood in midair whilst moving backwards can be a good way to create space.
 * Make sure to use up all your charges of Flood before transforming, as its cooldown is reset when you do so.
 * If you have multiple charges of Corrupted Flood available, then firing them straight down them allows the Void Fiend to stall in the air for a limited amount of time.
 * The channel time of Suppress is affected by Void Fiend's attack speed, which can lead to it being unable to use Trespass when needed if its attack speed has been lowered.
 * Using a Shrine of Blood increases the Void Fiend's Corruption, which means that it can then use the uncorrupted version of Suppress to quickly recoup some of the lost HP.
 * Since taking damage increases your Corruption, repeated use of Suppress can greatly extend how long the Void Fiend can survive outside the safe zones in the Void Fields and Simulacrum. This becomes even more noticeable once your minimum Corruption passes 25%.
 * With an extremely high number of void items, it becomes possible to transform almost on demand by either stopping using Suppress to become corrupted or by ceasing attacking to become uncorrupted.
 * While almost all healing reduces your Corruption, any excess healing done past your maximum health is ignored. This means that taking will nullify any reduction to your Corruption caused by healing items, as all but 1 of your health is replaced with shields.

Trivia

 * The Void Fiend is a corrupted, although it is not the Commando who escaped Petrichor V during the events of the first Risk of Rain game.
 * Its Umbra title is stylized in-game as 『Co??rupted Am?nesiac】.
 * Its endings are stylized in-game as "『..and s?o it c??omes】... 「fo?r al?l of us.』" and "『..a?nd so it v?ani??shed』, 「a wh?isper in the d??arkness』" respectively.
 * The Void Fiend is referred to internally as "VOIDSURVIVOR".
 * Since the Void Fiend has 2 sets of moves that it alternates between based on Corruption, it is the only Survivor who has no alternate loadout skills.
 * Instead of starting in an Escape Pod like most other survivors, the Void Fiend drops in a spherical pod that launches it slightly upwards upon emerging.