{T}, Discard a card: Create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") {4}, {T}, Sacrifice this artifact: Return target creature card from your graveyard to your hand.

Discard your hand, Sacrifice this artifact: Add three mana of any one color. Activate only as an instant.

Whenever this creature dies or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

As an additional cost to cast this spell, discard a card. {4}: This creature deals 1 damage to target creature. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)