Warrior of the Dust

Warrior of the Dust enters the battlefield with an
X mana cost, where X is all of the untaped lands
on your battlefield. When Warrior of the Dust is
cast this way, he enters the battlefield with haste
and X +1/+1 counters on him.
{t} Return target creature from the graveyard or
exile to the battlefield.
{ut}{x}Sacrifice a creature you own and gain its abilities, power, and toughness.