Colossal Pumpkin

At the beginning of your upkeep, if anyone owns
a Human, create a 1/1 green Plant creature token. Then put a +1/+1 counter on a target creature.
When Colossal Pumpkin dies create {x} 1/1 black Skeleton tokens, equal to Colossal Pumpkin's toughness.
Many of these pumpkins have been shown capable of growing to enormous sizes.