Glowstone Recluse

Mutate {3}{G} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Reach
Whenever this creature mutates, put two +1/+1 counters on it.

Card Details:
Set: Ikoria: Lair of Behemoths
Collector Number: 156
Artist: Yeong-Hao Han