Sai, Master Thopterist + Ancestral Statue + Clock of Omens + Empowered Autogenerator

Sai, Master Thopterist

Ancestral Statue

Clock of Omens

Empowered Autogenerator

How it works

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.