when cast pick ally within sight to receive 1d6+ casters spell mod.    add  1d6 per spell level cast after 1st

if ally downed meet them in the white hot room offer ally chance to revive ally must roll d20 and effects differ upon roll.   

nat 1:  ally revives with 10hp and has disadvantage on wiz/itl saving throws due to insanity for 2 turns

2-10: ally revives with 1/4 of max hp

11-19: ally revives with 1/2 of max hp and has advantage of saving throws for 1 turn

nat 20:  ally revives with full health and advantage on attack rolls against the enemy that downed it for 2  turns