Prankle, Rankle of Pies

When Prankle, Rankle of Pies enters the battlefield and at the beginning of your upkeep, create a Food token.
Whenever Prankle, Rankle of Pies attacks,
you may discard a card. If you do, Prankle, Rankle of Pies deals damage equal to the discarded card's mana cost to any target.