Finn, One Hit Kill

Trample When Finn enters the battlefield, create a number of 1/1 green Elf Warrior creature tokens equal to the number of elves you control. Whenever Finn attacks, create two 1/1 green Elf Warrior creature tokens, then Finn gets +X/+X until end of turn, where X is the number of elves you control. If X is 15 or more, defending player looses the game.{flavor} “Can you kill me next turn instead?”