Raptora

When a unit that includes a Psyker with this power is selected to make a Move or a Run move during the controlling player's Movement phase that ends within 12" of an enemy unit, the controlling player may make a Psychic check for the Psyker with this power before any models in the unit are moved. If the Psychic check is successful then all models in the unit with the Psyker Sub-type and Legiones Astartes (Thousand Sons) special rule gain a 6+ Invulnerable Save, or if the unit already has an Invulnerable Save, that save is increased by one step (for example, from 6+ to 5+) up to a maximum of a 4+ Invulnerable Save, until the start of the controlling player's next turn. If the Psychic check is failed then the Psyker suffers Perils of the Warp.