Librarius Conclave

At the start of the battle round, select one of the following Psychic Disciplines. Until the end of the battle round, that Psychic Discipline is active and its effects apply to all Adeptus Astartes Psyker units from your army. 

Biomancy Discipline Add 2" to the Move characteristic of models in this unit. 

Divination Discipline Each time a model in this unit makes an attack, re‑roll a Hit roll of 1 and re‑roll a Wound roll of 1.

Pyromancy Discipline Each time a ranged attack made by a model in this unit targets an enemy unit within 12", improve the Armour Penetration characteristic of that attack by 1.

Telekinesis Discipline Each time a ranged attack targets this unit, subtract 1 from the Strength characteristic of that attack.

Telepathy Discipline Each time a model in this unit makes an attack, you can ignore any or all modifiers to that attack’s Weapon Skill or Ballistic Skill characteristics and/or any or all modifiers to the Hit roll.