Ertha Jo, Frontier Mentor + Clock of Omens + Siren of the Silent Song + Liquimetal Torque

Ertha Jo, Frontier Mentor

Clock of Omens

Siren of the Silent Song

Liquimetal Torque

How it works

1. Activate Liquimetal Torque by tapping it, causing Siren of the Silent Song to become an artifact.
2. Activate Clock of Omens by tapping it and Siren of the Silent Song, targeting Siren of the Silent Song.
3. Ertha Jo triggers, copying Clock of Omens' ability, targeting Clock of Omens.
4. Resolve both Clock of Omens abilities, untapping it and Siren of the Silent Song.
5. Siren of the Silent Song triggers, causing each opponent to discard and mill a card.
6. Repeat from step 2.