Rhystic Tutor ? Innocent Blood ?How about Avatar of Woe and Thornbite Staff ?

I'm not sure if I like Rhystic Tutor just because people tend to have alot of mana in EDH and late game it'll just get countered. Innocent Blood is something I'll consider, but I love the Avatar of Woe /Thornbite Staff combo, if I can find space for it in here I'm definitely playing it, but its gonna be an auto-include in my Tariel EDH

Nether Traitor is just asking to have Elbrus, the Binding Blade  ^Flip attached to it.

That infinite combo doesn't work. Nether Traitor needs colored mana...

you also only have 80 cards

it works with phyrexian altar as the sac outlet. shoulda been more specific. and I know that I only have 80 cards, I'm looking for suggestions.

Mountains?

the 31 basics are in there for card count, as stated in the description. i finalize my mana bases after the rest of the deck is completed.

Molten Primordial to grab everyone's things and sac afterwards

Oh so it's a prototype. I was wondering why there were 2 Increasing Ambitions and Diabolic Tutors but that's probably a typo. General suggestions for most sac decks: Victimize , Attrition , Blood Rites , Rakdos Riteknife , Swiftfoot Boots /Lightning Greaves /Sol Ring , Stronghold Assassin , Sheoldred, Whispering One , Grave Titan , Fell Shepherd , Fleshbag Marauder , Endless Cockroaches , and Endrek Sahr, Master Breeder . Those are generic suggestions that you might consider adding since the deck isn't 99 cards right now. #1 recommendation is Dross Harvester for synergy with the infinite sacrifice combos.

Why not Mikaeus, the Unhallowed + Lingering Tormentor + -- Pawn of Ulamog + Bog Initiate + your Viscera Seer + Harvester of Souls -- You can use any of these but all together it makes infinite scry, infinite draw, infinite black mana, at instant speed.

thats a tough combo to assemble, but If I have the room after I actually put time into this list I'll toss some of the cards in there. i could exsanguinate for lethal >=)

Like I said, you can use just Viscera Seer and Harvester of Souls (maybe) for the infinite scry and draw (literally draw what you need at that moment in time). And as hard as it is, I've seen the combo go off so many times its ridiculous.