Ancestral Statue + Clock of Omens + Empowered Autogenerator + Efficient Construction

Ancestral Statue

Clock of Omens

Empowered Autogenerator

Efficient Construction

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. Efficient Construction 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.