Cephalid Illusionist, and Lightning Greaves

Prerequisites

• Cephalid Illusionist on the battlefield
• Lightning Greaves on the battlefield
• You control another creature

Steps

1. Activate Lightning Greaves' equip ability by paying , targeting Cephalid Illusionist
2. Cephalid Illusionist triggers, causing you to mill three cards
3. Resolve the Lightning Greaves ability, attaching it to Cephalid Illusionist
4. Activate Lightning Greaves' equip ability by paying , attaching it to any other creature you control
5. Repeat

Results

• Infinite self-mill