Nidhoggr, Devourer of Roots

Flying, Deathtouch
When Nidhoggr enters the battlefield, sacrifice it
unless it escaped.
Whenever Nidhoggr enters the battlefield, destroy
up to 6 lands, and create a 2/2 black zombie
creature token for each land in all graveyards.
Escape—{5}{b}{b}{b}, Destroy 3 lands you control.