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

Color identity: BR
Mana cost: {3}{B}{R}{R}
Steps:
  1. Cast Corpse Dance by paying {2}{B}.
  2. Holding priority, cast Dualcaster Mage by paying {1}{R}{R}.
  3. When Dualcaster Mage enters the battlefield, it triggers, creating a copy of Corpse Dance.
  4. Activate Altar of Dementia by sacrificing Dualcaster Mage, causing target player to mill cards equal to Dualcaster Mage's power.
  5. Resolve the copy of Corpse Dance, returning Dualcaster Mage from your graveyard to the battlefield.
  6. Repeat from step 3.[END OF COMBO STEPS]

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

Other prerequisites:
  - Corpse Dance must be in your hand
  - Dualcaster Mage must be in your hand
  - Altar of Dementia must be on the battlefield
[END OF COMBO PREREQUISITES]
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