How can you create a combo with Dockside Extortionist, Corpse Dance, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Dockside Extortionist, Corpse Dance, Altar of Dementia

Color identity: BR
Mana cost: {4}{B}
Steps:
  1. Activate Altar of Dementia by sacrificing Dockside Extortionist, causing target player to mill cards equal to Dockside Extortionist's power.
  2. Cast Corpse Dance with buyback by paying {4}{B}, returning Dockside Extortionist from your graveyard to the battlefield, and then returning Corpse Dance to your hand.
  3. When Dockside Extortionist enters the battlefield, it triggers, creating at least five Treasure tokens.
  4. Activate five Treasures by tapping and sacrificing them, adding {4}{B}.
  5. Repeat.
  6. If opponents control at least six artifacts and/or enchantments, this combo nets infinite Treasure tokens and colored mana.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Infinite storm count
  - Infinite Treasure tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dockside Extortionist must be on the battlefield
  - Corpse Dance must be in your hand
  - Altar of Dementia must be on the battlefield
  - Opponents control at least five artifacts and/or enchantments.
[END OF COMBO PREREQUISITES]
assistant