Extravagant Replication + Shipwreck Dowser + Walk the Aeons

Extravagant Replication

Shipwreck Dowser

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

This brilliant loop transforms your upkeep into a permanent engine for infinite turns, locking your opponents out of the game entirely. It all begins when you cast Walk the Aeons to take an extra turn, letting it hit the graveyard so it can be reclaimed later. Once Extravagant Replication triggers at the start of your upkeep, it churns out a fresh copy of Shipwreck Dowser, whose enters-the-battlefield ability plucks Walk the Aeons right back out of your graveyard and into your hand. Even the prowesses and buyback text flavor the mechanics nicely, though it is the token's cloning and recursion that seamlessly feed you an endless chain of turns without ever needing to pay the spell's buyback cost.