Sneak Attack, Wizard Mentor, and Priest of Urabrask

Prerequisites

• Sneak Attack on the battlefield
• Wizard Mentor in hand
• Priest of Urabrask in hand
• available

Steps

1. Activate Sneak Attack by paying , putting Priest of Urabraask from your hand onto the battlefield and giving it haste
2. When Priest of Urabrask enters the battlefield, it triggers, adding
3. Activate Sneak Attack by paying , putting Wizard Mentor from your hand onto the battlefield and giving it haste
4. Activate Wizard Mentor by tapping it, returning it and Priest of Urabrask from the battlefield to your hand
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite red mana