How can you create a combo with The Master, Formed Anew, Cavalier of Night, Altar of Dementia?
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[START OF COMBO]This combo can be formed with The Master, Formed Anew, Cavalier of Night, Altar of Dementia

Color identity: UB
Mana cost: {U}{B}
Steps:
  1. Activate Altar of Dementia by sacrificing The Master.
  2. When The Master dies, its second ability triggers, returning itself from your graveyard to the battlefield as a copy of Cavalier of Night.
  3. When The Master enters the battlefield, its first ability triggers, doing nothing.
  4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to The Master's power.
  5. 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:
  - The Master, Formed Anew must be on the battlefield
  - Cavalier of Night must be exiled
  - Altar of Dementia must be on the battlefield
  - Cavalier of Night in exile with a takeover counter on it.
  - The Master on the battlefield as a copy of Cavalier of Night.
[END OF COMBO PREREQUISITES]
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