Extravagant Replication + Mnemonic Wall + Walk the Aeons

Extravagant Replication

Mnemonic Wall

Walk the Aeons

How it works

1. Cast Walk the Aeons 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 Walk the Aeons from your graveyard to your hand.
5. Repeat.

This clever loop locks down the game by chaining infinite extra turns through a self-sustaining engine. It all kicks off with Walk the Aeons granting you an extra turn, which safely sends the sorcery to your graveyard after resolution. As your next turn dawns, Extravagant Replication triggers its upkeep ability to craft a fresh token copy of Mnemonic Wall. That token's arrival immediately triggers its enter-the-battlefield effect, plucking Walk the Aeons right back from your graveyard into your hand so you can cast it all over again.