Phantom Steed + Walk the Aeons + Mnemonic Wall

Phantom Steed

Walk the Aeons

Mnemonic Wall

How it works

1. Cast Walk the Aeons, taking an extra turn after this one.
2. Attack with Phantom Steed.
3. Phantom Steed triggers, creating a token copy of Mnemonic Wall that is tapped and attacking.
4. Mnemonic Wall enters, returning Walk the Aeons from your graveyard to your hand.
5. Pass the turn.
6. Repeat.

This cunning loop achieves infinite turns by recycling a single sorcery through an endless cycle of ghostly combat and arcane recall. By casting Walk the Aeons, you secure an extra turn to set up your board. When Phantom Steed attacks, its ability conjures an attacking token copy of Mnemonic Wall, whose enter-the-battlefield trigger plucks Walk the Aeons right back out of your graveyard and into your hand. Because Phantom Steed keeps generating a fresh Mnemonic Wall token every single combat phase, you can continuously recast Walk the Aeons to take all the time in the world.