Yawgmoth, the Ineffable

When Yawgmoth, the Ineffable enters the battlefield, each other creature gets -11/-11.
Whenever another nontoken creature dies, put a +1/+1 counter on Yawgmoth, the Ineffable, then create a 2/2 black Zombie creature token.
When Yawgmoth, the Ineffable dies, create an emblem with "Each land is a swamp in addition to its other land types," then exile Yawgmoth, the Ineffable.