Extravagant Replication + Walk the Aeons + Zealous Lorecaster

Extravagant Replication

Walk the Aeons

Zealous Lorecaster

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 Zealous Lorecaster.
4. When the Zealous Lorecaster token enters the battlefield, it triggers, returning Walk the Aeons from your graveyard to your hand.
5. Repeat.

This brilliant loop achieves infinite turns by recycling a single extra-turn spell right out of your graveyard. You begin by casting Walk the Aeons to secure your next turn, letting it hit the graveyard once it resolves. Then, Extravagant Replication does the heavy lifting on each upkeep by churning out a fresh token copy of Zealous Lorecaster. Because that token enters the battlefield, its triggered ability immediately returns Walk the Aeons from your graveyard back to your hand, ready to be cast all over again.