Cephalid Illusionist, and Plate Armor

Prerequisites

• Cephalid Illusionist on the battlefield
• Plate Armor on the battlefield

Steps

1. Activate Plate Armor's equip ability by paying , targeting Cephalid Illusionist
2. Cephalid Illusionist triggers, causing you to mill three cards
3. Resolve the Plate Armor ability, attaching it to Cephalid Illusionist
4. Repeat

Results

• Infinite self-mill