Filigree Sages, Prototype Portal, Mistvault Bridge, Tiller Engine, and Biomancer's Familiar

Prerequisites

• Filigree Sages on the battlefield
• Prototype Portal on the battlefield
• Mistvault Bridge in exile
• Tiller Engine on the battlefield
• Biomancer's Familiar on the battlefield

Steps

1. Activate Prototype Portal by paying and tapping it, creating a token copy of Mistvault Bridge
2. When Mistvault Bridge enters the battlefield, Tiller Engine triggers, untapping it
3. Activate the Mistvault Bridge token by tapping it, adding
4. Activate Filigree Sages by paying , untapping Prototype Portal
5. Repeat

Results

• Infinite landfall triggers
• Infinite tapped Mistvault Bridge tokens