Tephraderm, and Psionic Gift

Prerequisites

• Tephraderm on the battlefield
• Psionic Gift on the battlefield

Steps

1. Activate Tephraderm by tapping it, dealing 1 damage to itself
2. Tephraderm triggers, dealing 1 damage to itself
3. Step 2 repeats in an infinite loop, causing the game to end in a draw

Results

• Draw the game