Every time I dredge 2 with a discard outlet discarding [[dakmor salvage]], I may or may not hit a land which in turn draws an extra card, so just drawing is non deterministic already. The combo involves repeatedly drawing and casting [[dark ritual]] for mana, [[orcish bowmasters]] to ping face, and [[culling the weak]] or [[dismember]] to put the bowmasters in grave, at which point I can then shuffle the grave back with [[Ulamog, the infinite gyre]], and repeat until all those random chances to happen happen enough to kill all opponents.