Hawkeye's Bow, Fatestitcher, and Ioreth of the Healing House

Prerequisites

• Hawkeye's Bow on the battlefield
• Fatestitcher on the battlefield
• Ioreth of the Healing House on the battlefield

Steps

1. Activate Fatestitcher by tapping it, targeting Ioreth of the Healing House
2. If Fatestitcher has Hawkeye's Bow attached to it, Hawkeye's Bow triggers, dealing 1 damage to each opponent
3. Resolve the Fatestitcher ability, untapping Ioreth of the Healing House
4. Activate Ioreth of the Healing House by tapping it, targeting Fatestitcher
5. If Ioreth of the Healing House has Hawkeye's Bow attached to it, Hawkeye's Bow triggers, dealing 1 damage to each opponent
6. Resolve the Ioreth of the Healing House ability, untapping Fatestitcher
7. Repeat

Results

• Infinite damage