Clavu, Canteen Keeper

Lifegain Specialist: Whenever another creature you control dies, you gain 2 life.
Food Supplier: At the beginning of your upkeep, create a Food token. (A Food token is an artifact with "{2}, {t}, Sacrifice this artifact: You gain 3 life.")
Fortify the Weak: {w}{b}, Sacrifice a Food token: Put a +1/+1 counter on target creature you control. If that creature’s toughness is 2 or less, it gains indestructible until end of turn.
Soul Nourisher: Whenever you sacrifice a Food token, target opponent loses 2