Extravagant Replication, Mnemonic Wall, and Time Warp

Prerequisites

• Extravagant Replication on the battlefield
• Mnemonic Wall on the battlefield
• Time Warp in hand
• You have enough mana to cast Time Warp each turn

Steps

1. Cast Time Warp by paying its mana cost, causing you to take an extra turn after this one
2. Move to your next turn
3. At the beginning of your upkeep, Extravagant Replication triggers, creating a token copy of Mnemonic Wall
4. When the Mnemonic Wall token enters the battlefield, it triggers, returning Time Warp from your graveyard to your hand
5. Repeat

Results

• Infinite turns