Halo Fountain, Fatestitcher, and Ilysian Caryatid

Prerequisites

• Halo Fountain on the battlefield
• Fatestitcher on the battlefield
• Ilysian Caryatid on the battlefield

Steps

1. Activate Ilysian Caryatid by tapping it, adding Activate Fatestitcher by tapping it, targeting Halo Fountain
2. Holding priority, activate Halo Fountain by paying , tapping it, and untapping Fatestitcher and Ilysian Caryatid, causing you to draw a card
3. Resolve the Fatestitcher ability, untapping Halo Fountain
4. Repeat

Results

• Infinite card draw
• Infinite draw triggers