Culexus

Any unit wishing to shoot at or charge the Culexus Assassin, and any psyker trying to target him with a psychic power, must first pass a Leadership test. If the test is failed they may not target the Assassin, but may attack another target instead.

For each psyker within 12" of the Culexus Assassin, add +1 to the Animus Speculum's Assault value.

Instead of using the Animus Speculum, the Culexus Assassin may throw a psyk-out grenade. They have a range of 6". Roll to hit as normal. If an enemy psyker is hit by the attack, he must pass a Leadership test on a 2D6. For each point the psyker fails the test by, he loses 1 Wound. Saving throws can be taken as normal.

Any psyker within 6" of the Culexus Assassin at the start of their turn must pass a Morale check  or fall back. If they are with a unit then the unit must also fall back.

Any unit (friend or foe) with a model within 12" of the Culexus Assassin counts as having Leadership 7, unless it would normally be lower.

The Culexus Assassin can always target a psyker specifically with any shooting attacks, regardless of whether the psyker is in a unit, an independent character, etc. The Culexus Assassin may ignore other models when charging into an assault if this will allow it to get into contact with a psyker.

The Culexus Assassin may use this ability when in close combat with a psyker. Before any attacks are resolved, but after models are moved, both players roll 2D6 and add the Leadership value of their respective models. If the Culexus Assassin scores higher, the psyker loses 1 Wound with no saving throws of any type allowed. This power can only be used to affect one psyker per turn.

Always gets a saving throw regardless of AP value or hit normally ignoring armor saves

Automatically passes any Morale checks

Squad may deploy using Infiltrators special rule

Individual model. Can join other units in battle