The Hungry Hungry Caterpillar

{g}{t}: Add one mana of any color to your
mana pool. Put a food counter on The
Hungry Hungry Caterpillar.
{p/g}{p/g}{p/g}{p/g}{p/g}: Remove 5 food counters from
The Hungry Hungry Caterpillar and exile it.
At the beginning of your next upkeep, return
The Hungry Hungry Caterpillar to the battlefield transformed.