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

Color identity: URW
Mana cost: {4}{W}{U}{R}{R}
Steps:
  1. Cast Dance of the Manse for X=3 or more by paying at least {3}{W}{U}.
  2. In response, cast Dualcaster Mage by paying {1}{R}{R}.
  3. Dualcaster Mage enters the battlefield, targeting Dance of the Manse with its triggered abiltiy.
  4. In response, activate Altar of Dementia by sacrificing Dualcaster Mage, causing any player to mill two cards.
  5. Resolve Dualcaster Mage's trigger, creating a copy of Dance of the Manse targeting Dualcaster Mage and any other valid targets.
  6. Resolve that copy, returning those cards from your graveyard to the battlefield.
  7. 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
  - Put all nonland permanents below a certain mana value from your graveyard and library onto the battlefield[END OF COMBO RESULT][END OF COMBO]

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