Operation Carrot

Creatures you control have +1/+1.
At the beginning of your end step, if you dealt
damage to an opponent this turn, create X food tokens, where X is the number of creatures you control. Otherwise, sacrifice this enchantment.
(A food token is an artifact with "{2}, {t}, Sacrifice
this artifact: You gain 3 life.")
"Wise bunnies know the carrot will not hop to them."
- Bun Tzu, Carrots of Wisdom