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

Color identity: B
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Bloodsoaked Champion.
  2. When Bloodsoaked Champion dies, Pitiless Plunderer and Sifter of Skulls trigger.
  3. Resolve the Pitiless Plunderer trigger, creating a Treasure artifact token.
  4. Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion 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 Scion by sacrificing it, adding {C}.
  8. Activate Bloodsoaked Champion by paying {1}{B}, returning it to the battlefield from your graveyard.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

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