Gluttony

Bestow {5}{g} (If you cast this card for its bestow cost,
it's an Aura spell with enchant player. It becomes a creature again if it's not attached to a player.)
Whenever a nonartifact creature enchanted
player controls dies, they create a number of
Food tokens equal to its toughness.
At the beginning of enchanted player's upkeep,
each Food they control deals 1 damage to them.