How can you create a combo with Cavalier of Night, Glasspool Mimic // Glasspool Shore, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Cavalier of Night, Glasspool Mimic // Glasspool Shore, Altar of Dementia

Color identity: UB
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Glasspool Mimic.
  2. When Glasspool Mimic dies, its second ability triggers, returning itself to the battlefield as a copy of Cavalier of Night.
  3. When Glasspool Mimic enters the battlefield, its first ability triggers, choose not to sacrifice a creature.
  4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Glasspool Mimic'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:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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