Spell — Buff Debuff • Cost: 1
Exhaust a unit or non-Peace hero and put a +1/+1 rune on it. (Sideline it if it was patrolling.)
Draw a card.
Blue • Peace Magic
You CAN use this on something that's already exhausted. The exhaust isn't a cost here, so you do as much as you can. — Sirlin, 03/01/16