Monoblack infect deck ridiculously simple to play: just wipe out your opponent's creatures with Go for the throat, Dismember (and Slaughter pact as an unexpected ace up your sleeve), and use Inquisition of Kozilek to check your rival's hand and remove annoying noncreature permanents or spells that you can't control with the prior cards.
Then just bring phyresis to your enemies with 18 creatures with infect: Plague stinger and Inkmoth nexus have flying, Phyrexian crusader will laugh at white tokens, lightning bolts and path to exile, Plague mir helps to accelerate your mana, and Skithiryx as a finisher.
Signal pest and Mutagenic growth are the key to infect your opponents faster than they would expect, as most creatures lack strengh (except for the black skeleton dragon who can win the game by himself).
Some Woodland cemetery are needed just to have an alternative payment of Mutagenic growth instead of 2 life.
Urborg, tomb of Yawgmoth, is here mainly for the lore, although it can make Inkmoth nexus to produce black mana if needed.
Any suggestion will be welcomed!
