Prototype Portal, Clock of Omens, Battered Golem, and Seat of the Synod

Prerequisites

• Prototype Portal on the battlefield
• Clock of Omens on the battlefield
• Battered Golem on the battlefield
• Seat of the Synod in exile

Steps

1. Activate Prototype Portal by paying , creating a token copy of Seat of the Synod
2. When the Seat of the Synod token enters the battlefield, Battered Golem triggers, untapping itself
3. Activate Clock of Omens by tapping Battered Golem and the Seat of the Synod token, untapping Prototype Portal
4. Repeat

Results

• Infinite landfall triggers
• Infinite tapped Seat of the Synod tokens