Method 1 (Infinate Mill)
Turn 1: Play a Swamp and tap for Bloodchief Ascension
Turn 2 :Play another Swamp and tap 2 for Mindcrank
Turn 3:Play Swamp or Inkmoth Nexus and tap for a Maralen, of the Mornsong
Turn 4:Bloodchief Should have a counter on by this point for your opponent tutoring from the Maralen. You shouldn't need to search for land now, so the main focus is proliferateing counters on the Bloodchief Ascension, and Creature Removal. Tutor for Either Hideous End for creature Removal, Geralf's Messanger for Creature Presence or Sign in Blood for card draw.
Turn 5: Bloodchief Should have 3 counters now and should be ready to combo off by causing 2 or more damage to player. Tutor for either Hideous End, Geralf's Messanger, Bloodghast, or Sign in Blood on your opponent for the win.
Method 2 (Poison Counters)
Turn 1: Swamp, Tap, Play Bloodchief Ascension
Turn 2: Inkmoth Nexus, Tap Swamp attack for 1 Poison
Turn 3: Play a Land, Tap 2 for Everflowing Chalice gaining 1 counter for mana, tap chalice attack with nexus for another poison.
Turn 4: Play a land , Contagion Clasp and another Chalice for 1 counter, Attack with nexus, up to 3.
Turn 5: Play land (nexus), Activate Clasps Ability, increasing your counters and any -1's ion opponents creatures and poison counters(4) If you have 2 nexus attack with both (6 Poison).
Turn 6: Contagion engine, Same as Turn 5 increase and attack for the win.
Other Tricks
Royal Assasin and Icy Manipulator for Creature Removal
Clasp, Engine and Spread the Sickness for Proliferate
Maralen, Messanger for Bloodchief Efficiency as well as Creature presence, and the tutoring Ability.
Bojuka Bog to upset Reanimator and Dredge style decks.
Mystifying Maze for removal, especially effective against Exalted style plays.
Geth, for getting some new toys to play with, useful against reanimator and dredge style decks, and generally a massive threat on the board due to intimidate.
Decimator Web is an alround good card in here working with both mindcrank for extra mill and Bloodchief for counters, aswell as giving poison for inkmoth style win.