Surgical Extraction is, I cannot stress this enough, borderline broken. You can eliminate Stoneforge Mystic on the FIRST TURN OF THE GAME.
Wurmcoil isn't great when your most important enemy is Condemn. I'm not sure about Rager, tell me how he works out. But really, Lashwrithe is crucial.
25 lands is a tad high, though no I have no complaints about the count. Consider Inkmoth Nexus. Lifegain is a major part of the meta, and you can be easily pushed out of the "doable" range when Elspeth hits the table, or Batterskull goes live.
1 of tumble Magnet? Uhhh...
Consider some Geth's Verdicts somewhere. I'd use those in place of Dismember. Also, Go For the Throat is STRICTLY better than Doom Blade. Batterskull is all I need to say there. Possibly reverse your counts?
How does Mind Rot work out? Is your 3 drop slot crowded with that, Mimic Vat, Rager, Tumble Magnet, and (usually) BSZ?
Been working on a budget (less than $75 or so) Grixis deck, suggestions? Sorry for poor coding.
Current, shaky decklist is something like this.
5 swamp
5 mountain
5 island
4 crumbling necropolis
2 Gatekeeper of Malakir
2 firefield orge
2 kederekt creeper
2 sedraxis specter
3 deathbringer thoctar
4 esper stormblade
4 grixis grimblade
3 thraximundar
2 mindlock orb
3 blightning
2 obelisk of grixis
1 telemin performance
2 obelisk of alara
2 soul manipulation
3 terminate