Extravagant Replication + Time Stretch + Mnemonic Wall

Extravagant Replication

Time Stretch

Mnemonic Wall

How it works

1. Cast Time Stretch by paying its mana cost, causing you to take two extra turns after this one.
2. Move to your first extra 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 Stretch from your graveyard to your hand.
5. Repeat during your second extra turn.