How can you create a combo with Sai, Master Thopterist, Ancestral Statue, Clock of Omens, Empowered Autogenerator?
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[START OF COMBO]This combo can be formed with Sai, Master Thopterist, Ancestral Statue, Clock of Omens, Empowered Autogenerator

Color identity: U
Mana cost: 
Steps:
  1. Activate Empowered Autogenerator's first ability by tapping it, putting a charge counter on it and adding at least {4}.
  2. Cast Ancestral Statue by paying {4}.
  3. Sai triggers, creating a 1/1 Thopter artifact creature token.
  4. Ancestral Statue enters the battlefield, triggering itself.
  5. Holding priority, activate Clock of Omens by tapping the Thopter and Ancestral Statue, untapping Empowered Autogenerator.
  6. Resolve the Ancestral Statue trigger, returning it from the battlefield to your hand.
  7. Repeat.
  8. Once you have infinite tapped Thopter tokens and infinite colored mana, you may activate Sai's ability to draw infinite cards.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite charge counters on Empowered Autogenerator
  - Infinite colored mana
  - Infinite draw triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite storm count
  - Infinite tapped creature tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Sai, Master Thopterist must be on the battlefield
  - Ancestral Statue must be in your hand
  - Clock of Omens must be on the battlefield
  - Empowered Autogenerator must be on the battlefield
  - Empowered Autogenerator has at least three charge counters on it.
[END OF COMBO PREREQUISITES]
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