spirirt of black

flying,deathtouch. indestructible, menace, protection from white, green, and black.
{b}{x}{t}: choose 1 pay life equal to {x}, you do {x} damage
to each creature or opponent in the game
for every {b} in {x},
create a 2/3 black horror creature token with
you do {x} damage to target opponent.
you gain life equal to life lost this way.
when spirit of black attacks, its owner loses 1 life