uncommon champion necromancy negative 

Cast [>] somatic

Range touch; Targets 1 willing undead creature or 1 living creature

You infuse the target with negative energy. If the target is living, this deals 1d6 negative damage (basic Fortitude save); on a failed save, the target also takes a –2 status penalty to AC for 1 round.

If the target is a willing undead creature, the target instead regains 6 Hit Points, and if you are the undead target, you also gain a +2 status bonus to damage rolls for 1 round.

Heightened (+1) Increase the damage dealt to a living creature by 1d6 or increase the Hit Points regained by undead by 6.

Advanced Player’s Guide, page 229.