Union Bust

Choose up to three creatures within 90ft. Each creature must succeed on a Wisdom saving throw or receive [roll]2d8[/roll] points of psychic damage and suffer the following effects:
Creatures that were friendly to the creature(s) are considered hostile for the purposes of spells and spell-like abilities (see: a Paladin's Aura Of Protection no longer affects them) and cannot heal or be healed by others through magical means.

For each level above 2nd, the damage increases by 1d8.