Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your end step, create a number of
Food tokens (They're artifacts with ", , Sacrifice this artifact: You gain 3 life.") equal to the number of nontoken creatures you had enter the battlefield under your control this turn.
, Sacrifice a Food: Target creature gains
indestructible (Effects that say "destroy" don't destroy that permanent. An indestructible creature can't be destroyed by damage.) until end of turn. Tap it.