Crumblestone Incubator

Crumblestone 4 (This creature enters the battlefield
with four crumble counters on it. Its toughness is equal
to the number of crumble counters on it. Whenever this creature attacks or blocks, remove a crumble counter
from it at end of combat.)
When Crumblestone Incubator dies, create a 2/2
red Phoenix creature token with flying. It has
"{r}: Regenerate this creature."