Jack, Devourer

Corruption, Flying, Ward: Gain 2 Corruption.
-Whenever a land leaves the battlefield, scry 2.
-Whenever a nontoken creature dies, add {b}.
-Whenever a nontoken artifact enters a graveyard, you
may draw one card.
-Whenever an enchantment enters a graveyard, proliferate.
-Whenever a token leaves the battlefield, give this card a +1/+1 counter.
{b}{b}{b}{b}{b}{b}{t}: Destroy target permanent.
"Jack becomes a raging storm of tentacles and shadow, corrupting everything beneath him."—DM