Felhor, Lord of War

Other Elves you control gain +1/+1
Whenever you cast an Elf spell you may put a 1/1
green Elf Warrior creature token on to the battlefield. Add {g} to your mana pool.
{t}, Sacrifice X Elves: Felhor, Lord of War deals
X damage to target creature, where X is the
number of Elves sacrificed this way.
"This is war. Victory always comes at a cost. "