Mnemonic Wall, Erratic Portal, and Temporal Manipulation

Prerequisites

• Mnemonic Wall in hand
• Erratic Portal on the battlefield
• Temporal Manipulation in hand
• each turn available

Steps

1. Cast Temporal Manipulation by paying , taking an extra turn after this one
2. Cast Mnemonic Wall by paying
3. Mnemonic Wall enters the battlefield, returning Temporal Manipulation from your graveyard to your hand
4. Activate Erratic Portal by paying and tapping it, returning Mnemonic Wall from the battlefield to your hand
5. Repeat each turn

Results

• Infinite turns