Hawkeye's Bow, and Seeker of Skybreak

Prerequisites

• Hawkeye's Bow on the battlefield
• Seeker of Skybreak on the battlefield

Steps

1. Activate Seeker of Skybreak by tapping it, targeting itself
2. Hawkeye's Bow triggers, dealing 1 damage to each opponent
3. Resolve the Seeker of Skybreak ability, untapping it
4. Repeat

Results

• Infinite damage