Dour Port-Mage + Mnemonic Wall + Walk the Aeons

Dour Port-Mage

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. Cast Mnemonic Wall by paying its mana cost.
3. When Mnemonic Wall enters the battlefield, it triggers, returning Walk the Aeons from your graveyard to your hand.
4. Move to your next turn.
5. Activate Dour Port-Mage by paying 1 and tapping it, returning Mnemonic Wall from the battlefield to your hand.
6. Dour Port-Mage triggers, causing you to draw a card.
7. Repeat.

This infinite turn loop is engineered by recycling a single copy of Walk the Aeons over and over again, taking infinite extra turns. Mnemonic Wall provides the essential entry trigger that plucks Walk the Aeons right back out of your graveyard every time it's cast, feeding your hand for the next cycle. To reset this loop continuously, Dour Port-Mage steps in with its activated ability to bounce Mnemonic Wall back to your hand for reuse, while simultaneously triggering its own passive draw ability to reward you with a card every time the Wall leaves the battlefield without dying.