Hazarl the Outcast

Haste
{x}{r}{g}, {t}: Sacrifice X lands. Hazarl deals X
damage to target creature, player, or planswalker.
Whenever Hazarl attacks you may pay
{x}{g}{w}, where X is the number of land cards in
your graveyard: Create X 1/1 green Elf Spirit
Warrior creature tokens.