Combo's: Four Hourseman. AKA Mesemeric Orb + Basalt Monolith + Eldrazi in your deck. Tap Monlith for 3, then untap for 3 milling a card. Mill infinite cards, make infinite zombies with sidisis, continue until you have both Craterhoof and Dread Return in your bin. Dread Return Craterhoof and hit for a bunch. You can also Dread Return Graveborn Soverign for all sorts of hilarity.

There are many creature that untap themselves or each other that you can use instead of monolith (Fatesticher/Seaker the Skybreak/Alphetto Chemist if I ever find one to add to the deck.)

Alter of Dementia to mill yourself and make more zombies. With Undead Warrior you can probably go infinite.

Missing Cards - Really needs a Doubling Season. Makes token beatdown stronger, and make Alter of Dementia combo's viable. Aphetto Chemist - Another untap effect Disciple of Bolas - Decent card draw Disciple of Deceit - Strong tutor effect. Erebos - Strong card draw Gravecrawler - Really good with Alter of Dementia Nullmage Shephard - Decentart/ent removal Masacre Wurm - Decent creature removal Vampiric Tutor - Decent Tutor.

Manabase needs: Bayou, Breeding Pool, Flooded Grove, Misty, Tropical Island.