Hawkeye's Bow, Forensic Researcher, and North Pole Patrol

Prerequisites

• Hawkeye's Bow on the battlefield
• Forensic Researcher on the battlefield
• North Pole Patrol on the battlefield

Steps

1. Activate Forensic Researcher by tapping it, targeting North Pole Patrol
2. If Forensic Researcher has Hawkeye's Bow attached to it, Hawkeye's Bow triggers, dealing 1 damage to each opponent
3. Resolve the Forensic Researcher ability, untapping North Pole Patrol
4. Activate North Pole Patrol by tapping it, targeting Forensic Researcher
5. If North Pole Patrol has Hawkeye's Bow attached to it, Hawkeye's Bow triggers, dealing 1 damage to each opponent
6. Resolve the North Pole Patrol ability, untapping Forensic Researcher
7. Repeat

Results

• Infinite damage