Poporingoyf

Trample, myriad (Whenever this creature
attacks, for each opponent other than defending
player, you may create a token copy that's tapped
and attacking that player or a planeswalker they
control. Exile the tokens at end of combat.)

Poporingoyf's power is equal to the number of
card types among cards in all graveyards and
its toughness is equal to that number plus 1.