Leonin Relic-Warder, and Biotransference

Prerequisites

• Leonin Relic-Warder in hand
• Biotransference on the battlefield
• You have at least 2 life
• available

Steps

1. Cast Leonin Relic-Warder by paying
2. Biotransference triggers, causing you to lose 1 life and create a 2/2 Necron Warrior token
3. Leonin Relic-Warder's ETB ability triggers, exiling itself
4. Leonin Relic-Warder's LTB ability triggers, returning itself to the battlefield
5. Repeat from step 3 any number of times

Results

• Infinite ETB
• Infinite LTB