Slightly modified my grixis control list to win on the deckout plan, for the "win without damage" achievement.
Changes from the other list:
-1 Griselbrand
-1 Inferno Titan
-1 Kozilek
+1 Elixir of Immortality
+1 Negate
+1 Dead Weight
The deck's biggest weakness previously was a turn two krenko's command followed by a turn three krenko's command without an anger in the top 30 cards of the deck, or a spider spawning. Cutting creatures and adding a negate stops that. The other big weakness, bloodghasts and masked admirers, are held off by a turn by the added dead weight, which is sort of nice. Those two guys are the reason why obelisk is still in the deck though. My solution to kozilek previously was to kill it, then kill the other guy, but now that my plan is to mill, my only answers are to break with that and kill with obelisk, or to anger+tribute the kozilek. The game really needs syncopate or dissipate for kozilek though. the deck does entirely blank creature removal with the new wincon, which is a sort of card advantage. The deck does actually still feel solid, has a slightly better early game than the old version and has a similar oppressive late game to the other one. Only, instead of eventually mercy killing over 2/3 turns with a wincon, I draw-go my opponent to death. Elixir is not a turn one play, you need it to not deck out before your opponent and you cannot be leaving the elixir open to 1-in-50 maindecked naturalizes. Elixir must be played with mana open to crack it, preferably more so that you don't tap countermagic mana down and let a threat resolve. Banefire is in neither version, you don't tap out at sorcery speed as control, and you've already won the game if you've made it to 21 mana.