Infinite Obliteration
A card to say no to other people's combos. This and Imp's Mischief would be so helpful in this deck if I can figure out what to take out for them.
Tezzeret, Cruel Captain
3 mana colorless tutor for some serious ramp as well as Sensei's Divining Top. It also is an untap for an artifact, so it could be a big boost if used on a loaded The One RingGC or Metalworker. Drawback is it's sorcery speed, doesn't have good access to additional counters, and is kinda slow. Main reason I'm not using it though is finding something that isn't already doing what he does, but better.
Ugin, the Ineffable
Colorless discounts and removal of anything. It's an answer to the artifact and grave hate, although at 6 mana it's so expensive I just don't know how to justify it.
Snuff Out
Free kill spell. Space is tight, only hits creatures, doesn't exile, isn't a board wipe.
Necromancy
More revival, but the deck really isn't a revival deck, it just uses it to cheat out a Necrotic Ooze for quicker wins when getting Trazyn out would be unlikely.
Stitch Together
More revival, but the deck really isn't a revival deck, it just uses it to cheat out a Necrotic Ooze for quicker wins when getting Trazyn out would be unlikely. Also relies on threshold, which isn't impossible, but isn't ideal.
Shallow Grave
Instant speed is nice, and it hits legendary creatures, but the gimmick is really weird and it only works if you order your graveyard properly, and in many cases that can be difficult to accomplish.
Exhume
Exhume is great if I can get it to go off early enough, or if I can make it so that I play it when nobody else has a good card in their graveyard, basically the same as in legacy. But it's just too risky to play if those conditions aren't met. Even though I'm planning on winning the turn I play it, they can potentially grab something that could stop that. Still it's one of the better reanimate cards, and so it's still a possibility.
Imp's Mischief
I like this card, I want this card, but I just can't see it when it's a 1/99 to draw it. I know I can tutor for it, but it's hard to want to do that. Maybe I'm wrong, I'll accept being wrong. I just wish there were more and better black counter options.