The Nut

Squirrels you control get +1/+1 and gain lifelink.
Sacrifice 2 Squirrel creatures: The Nut gains indestructible and hexproof until end of turn.
When The Nut is put into the graveyard from anywhere, create a 0/10 legendary creature token named The Tree and put it onto the battlefield tapped.
Nuts are sturdy, but what happens if they break?