Deck Primer / Description

This…Deck…is…FILTHY. If the ult of Sheoldred’s saga goes off, it’s straight up game over. Short of a complete board wipe, you’re going to win if you execute the plan right. Said plan is pretty simple: Mill both players -> Play Sheoldred -> Flip Sheoldred -> Win game. We’ve got plenty of ways to mill both sides of the battlefield, along with a small proliferate engine to ensure our game ending play goes off as soon as possible. We also run a number of tutors to makes sure we get to our key pieces as soon as possible.
Like I said: Our plan here is simple, brutal, and straight up wins the game if we play our cards right.

Now for the stars of the 99.
Realmbreaker, The Invasion Tree: We don’t use the ult of this card, but the mill effect not only loads up our opponent’s graveyard, it lets us ramp up so we can flip Sheoldred. Take a mulligan or two to see if you can get it in opening hand or at least have a tutor ready to nab it.

Vraska, Betrayals Sting: I have literally never used her -9 at all and you never need to. You’re running her for the proliferate, but the power of her -2 cannot be understated here.

Invasion of Fiora: Did your opponent over extend? Wanna load up their graveyard to hit the Ult even harder? You got it with IOF. Plus, the flipside of this card is pretty damn powerful against anything counter heavy.

Breach the Multiverse: Sort of a win more card, but if you can get this off while you’re a lore counter away from the ult, then it’s absolutely devastating.

Staff of Compleation: There’s not many decks I don’t run this in because of its absurd versatility, but it really helps us in this deck. Card draw, proliferate, ramp, what more could you want?

Mindwrack Harpy: Mills both players for three a turn and is a 3/2 flyer, nuff said.

Gix, Yawgmoth Praetor: Helps us get to our combo pieces easier through mass card draw.

Defiler of Flesh: Gives black perms phyrexian mana AND gives stuff menace.

Terror of Towashi: A reanimator on legs.

Cemetery Tampering: Self mill to set up a huge Sheoldred ult.