Hornet Nest, and Terror of the Peaks

Prerequisites

• Hornet Nest on the battlefield
• Terror of the Peaks on the battlefield
• You have a way to give Hornet Nest indestructible
• You have a way to deal damage to Hornet Nest

Steps

1. Give Hornet Nest indestructible by any method
2. Deal damage to Hornet Nest
3. Hornet Nest triggers, creating at least one 1/1 Insect creature token
4. The Insect enters the battlefield, triggering Terror of the Peaks, dealing 1 damage to Hornet Nest
5. Repeat from step 3

Results

• Infinite creature tokens
• Infinite ETB