uncommon bard composition healing necromancy positive 

Cast [>>] verbal

Range 30 feet; Targets you or 1 ally

Duration sustained up to 4 rounds

Your divine singing mends wounds and provides a temporary respite from harm. The target gains fast healing 2. When you Cast the Spell and the first time each round you Sustain the Spell, the target gains 2 temporary Hit Points, which last for 1 round.

Heightened (+1) The fast healing and temporary Hit Points each increase by 2.

Advanced Player’s Guide, page 228.