Cookie Monster

At the beginning of your upkeep, create a colorless Cookie artifact token
When Cookie Monster dies, create a colorless Mega Cookie artifact token with "At the beginning of your next upkeep, sacrifice this artifact and regenerate a creature named Cookie Monster from your graveyard to your hand."
Sacrifice a cookie: Cookie monster and one other target creature gets +1/+1.
Once in his sight, no cookie ever makes it out alive.