Extravagant Replication + Temporal Manipulation + Mnemonic Wall

Extravagant Replication

Temporal Manipulation

Mnemonic Wall

How it works

1. Cast Temporal Manipulation 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 Temporal Manipulation from your graveyard to your hand.
5. Repeat.

This elegant loop achieves infinite turns by turning your upkeep into a self-sustaining engine of time-magic recursion. It all begins with Temporal Manipulation, which grants you the crucial extra turn needed to keep the cycle going. Once you reach that next turn, Extravagant Replication steps in to steadily multiply your board state by forging a fresh token copy of Mnemonic Wall. That token's arrival triggers its enter-the-battlefield ability, fishing Temporal Manipulation right back out of your graveyard and back into your hand so you can cast it all over again.