OK so the main interactions here are keeping their creatures tapped with Binding Mummy and instant speed zombie tokens with Cryptbreaker/Vile Rebirth/Graf Harvest This combo generally leaves them open to being swarmed by your zombies each turn. the wincon is standard zombie token swarm, or a Wayward Servant in games where they lock out your attacks. There's also plenty of disruption with Thoughtseize,Tidehollow Sculler, Fatal Push, and Dusk to help you make it to the end game.
Card Purposes
Mutavault: Not much to say about this one, a random zombie when you need it, helps get out extra tokens with Endless Ranks of the Dead.
Cryptbreaker: Good first turn play, allows you to spawn a zombie on their turn while allowing you to maintain a hand by tapping out your random zombie tokens at their turn end.
Thoughtseize: Excellent disruption, aslo potential fuel for a random zombie token chump with Vile Rebirth
Fatal Push: Great early game removal, also fuels Vile Rebirth, and is perfect for mopping up after a Dusk.
Vile Rebirth: This card has a ton of niche purposes in this deck, the biggest being an instant zombie to tap out a potential threat with Binding Mummy, also makes a nice Chump to to block with outta' nowhere, or a tap fodder for Cryptbreaker.
Binding Mummy This is the MVP right here, with all the instant Zombie chumps you'll be getting with Cryptbreaker/Graf Harvest/Vile Rebirth he's a great way to keep their threats that squeak by locked out of the fray while your hoard of Zombie goons walk by and eat your opponents face.
Tidehollow Sculler: Pretty much the same purpose as Thoughtseize, but also being on a 2/2 Undead stick.
Wayward Servant:So this guy provides an alternate win if you get your creatures locked out, also helps keep your life up wich is helpful with how much life you blow on random end of their turn draws.
Diregraf Colossus: OK, so it never really gets SUPER beefy in this deck, which is fine, that's not why it's here, no, it's here because all of your standard Rotten Etb effects with Wayward Servant/Binding Mummy trigger twice per cast.
Endless Ranks of the Dead: sort of the final step of getting your damage through to go lethal, or a way to constantly gain advantage and steal health when locked into a grind when used with Wayward Servant on the field.
Dusk:This is an incredibly powerful field wipe when you realize that every creature in the deck survives the impact, even your pretty little tokens make it through the nuke this can turn games around, and with the aftermath all you get a pretty little hand of zombies to cast and squeeze more mileage out of your two mummies.
Necromancer's Covenant:The last play, this can provide a massive turnaround after a dusk and can bring in several zombie tokens, while providing substantial lifegain from your field of goons. I also feel like it kind of needs a home here.
Still working on a sideboard.
