Midnight Guard, and Presence of Gond

Prerequisites

• Midnight Guard on the battlefield
• Presence of Gond on the battlefield
• Presence of Gond attached to Midnight Guard
• Midnight Guard does not have summoning sickness

Steps

1. Tap Midnight Guard to create a 1/1 elf
2. Midnight Guard triggers, untapping itself because due to the creature ETB trigger
3. Repeat to make infinite elves

Results

• Infinite Elf tokens