Megagargantuamster

Devour Hamsters 2 (As this creature enters the battlefield, you may sacrifice any number of Hamsters. For each Hamster sacrificed this way, Megagargantuamster enters the battlefield with twice that many +1/+1 counters on it.)

Whenever Megagargantuamster deals combat damage to a player, destroy target nonland permanent for each +1/+1 counter on it. Then, for each permanent destroyed this way, create a 1/1 green Hamster creature token with trample.

"All hail the mighty squeak of doom."