Feathertopped Ruminator

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 you cast Feathertopped Ruminator, create
a 1/1 white Bird creature token with flying, and a
1/1 black Bird creature token with flying.
{t}: If it's your turn, scry 1.