Psi Operative (XCOM2)

The Psi Operative utilizes their mental abilities to great effect to boost their allies and mess up their enemies^[Verify?].

Psionic Operatives level up by training in the Psi Lab, not from battlefield experience. Operatives in training can still go on missions; barring wounds, they will resume training after the mission.

Primary Weapon: Assault Rifle

Secondary Weapon: Psionic Amplifier

The Psi stat is unique for Psi Operatives and is used to calculate their success chance with psionic attacks. The Will stat is used for psionic defense.

Abilities

Each training attempt allows a choice between three randomly selected abilities. It is possible to gain early access to abilities far down the tree. (Training time and/or cost increases in this case? ^[Verify?]) Psionic Operatives are capable of learning all of the available psionic abilities, although this would requires considerable time and resources.

Rank	Telepath	Resonant
Initiate	Soul Fire Does guaranteed psionic damage to an organic enemy. Ignores cover and armor. 4-6 damage[Verify?]	Stasis Completely stuns the target for 1 turn, but renders them immune to any damage or attack.
Acolyte	Insanity Debilitating telepathic attack that can inflict different negative conditions, including mental control of the target. Conditions include disorientation and stun. Mechanical enemies are immnue. 3-turn cooldown.	Inspire Immediately grant a bonus action to an ally within sight range. 3-turn cooldown. Does not require LOS.¹
Adept	Soul Steal Returns half of the damage dealt by Soul Fire as health. Cannot exceed starting health.¹	Stasis Shield Allows Stasis to be used on allies.¹
Disciple	Solace Psi Operative is surrounded by an aura that extinguishes or blocks any mental impairments for themselves or nearby allies. 4-tile radius. Conditions include disorient, stun, and panic.¹	Sustain If the Psi Operative takes lethal damage, they immediately enter Stasis mode with 1 HP. Once per mission. Does not clear status effects like acid or fire.¹
Mystic	Schism Insanity now deals 2-4[Verify?] damage and causes the enemy to suffer +2 damage from all attacks.¹	Fortress The Psi Operative is immune to fire, poison, acid, and explosive damage.¹
Warlock	Fuse If an enemy is carrying explosives, they can be remotely detonated by the Psi Operative. Fuse may also target corpses that contain unused explosives. No cooldown.	Domination Permanently mind control an enemy. Only one successful Domination can be performed per mission. 4-turn cooldown on failed domination attempt. Mechanical enemies are immnue.[Verify?]
Magus	Null Lance Project a beam of psionic energy that damages every target it passes through. 5-turn cooldown. Affects a one-tile-wide line, ignoring cover and line-of-sight.	Void Rift Generate an explosive field of Psionic energy that damages everything within. Organic enemies have a chance to suffer Insanity. 5-turn cooldown.

¹ In-game ability descriptions needed.

Sources

• XCOM 2 - Psi Operative Class - Skill Tree Breakdown [1]