Trench Behemoth, Fastbond, and Bloodfell Caves

Prerequisites

• Trench Behemoth on the battlefield
• Fastbond on the battlefield
• Bloodfell Caves on the battlefield

Steps

1. Activate Trench Behemoth by returning Bloodfell Caves from the battlefield to your hand, untapping it
2. Play Bloodfell Caves, triggering it and Fastbond
3. Resolve the Bloodfell Caves trigger, causing you to gain 1 life
4. Resolve the Fastbond trigger, dealing 1 damage to you
5. Repeat

Results

• Infinite landfall triggers
• Infinite lifegain triggers