Durri, Immortal Mutant

+1: Put a +1/+1 counter on each of up to 2 target creatures.
-4: Search your library for a creature card, reveal it, and put it into your hand. Then shuffle. Target creature gets +1/+1 until end of turn.
-10: Distribute three +1/+1 counters among one, two, or three target creatures, then double the number of +1/+1 counters on each of those creatures.