Sak'Hra, the Moon's Shine

Flying, Indestructible, Menace
All creatures your opponents control get -1/-1 for as long as Sak'Hra, the Moon's Shine is on the battlefield
{w}, {t}: You gain life equal to the number of nonhuman creatures you control
{b}, {t}: Target player lose life equal to the
number of human creatures they control