Asmor, Captive Chef

At the beginning of your end step, if you did not create one or more food tokens this turn, exile
Asmor, Captive Chef.
{t}, Sacrifice a creature: Create food tokens equal
to that creatures mana value.
{w}{u}{b}{r}{g}{t}, Discard two cards: Destroy all
other creatures. Create a food token for
each creature destroyed this way.