Tom, Bert, and William

Trample
When a creature that was dealt damage by this card is put into a graveyard from play this turn, put a +1/+1 counter on Tom, Bert, and William.
At the beginning of your upkeep, you may pay 3 life. If you don't, put a stone counter on this card.
Tom, Bert, and William can't attack or block as long as it has a stone counter on it.