How can you create a combo with Bloodsoaked Champion, Altar of Dementia, Pitiless Plunderer, Pawn of Ulamog?
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[START OF COMBO]This combo can be formed with Bloodsoaked Champion, Altar of Dementia, Pitiless Plunderer, Pawn of Ulamog

Color identity: B
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Bloodsoaked Champion.
  2. When Bloodsoaked Champion dies, Pitiless Plunderer and Pawn of Ulamog trigger.
  3. Resolve the Pitiless Plunderer trigger, creating a Treasure artifact token.
  4. Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token.
  5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Bloodsoaked Champion's power.
  6. Activate the Treasure by tapping and sacrificing it, adding {B}.
  7. Activate the Eldrazi Spawn by sacrificing it, adding {C}.
  8. When the Eldrazi Spawn dies, Pitiless Plunderer triggers, creating a Treasure token.
  9. Activate Bloodsoaked Champion by paying {1}{B}, returning it to the battlefield from your graveyard.
  10. Repeat any number of times.
  11. Once you have infinite Treasure tokens, you may repeat this loop spending mana from Treasures instead of Eldrazi Spawns in step 7, giving you infinite Eldrazi Spawn tokens.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite colorless mana
  - Infinite creature tokens with 0 power
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You attacked this turn.
[END OF COMBO PREREQUISITES]
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