Double Vision + Venser, Shaper Savant + Panharmonicon + Walk the Aeons

Double Vision

Venser, Shaper Savant

Panharmonicon

Walk the Aeons

How it works

1. Cast Walk the Aeons by paying 4.
2. Double Vision triggers, copying Walk the Aeons.
3. Holding priority, cast Venser by paying 2.
4. When Venser enters the battlefield, it triggers twice, returning itself and the original Walk the Aeons to your hand from the battlefield and stack respectively.
5. Resolve the copy of Walk the Aeons, causing you to take an extra turn after this one.
6. Repeat each turn.

This recursive loop locks down the game by chaining infinite extra turns through clever manipulation of the stack. It all kicks off when you cast Walk the Aeons, which triggers Double Vision to instantly spin off a copied extra turn, while Panharmonicon doubles up on Venser, Shaper Savant's entry trigger when he flashes in response. That double-triggered ability lets Venser scoop both himself and the original Walk the Aeons right back to your hand, bypassing the need for expensive buyback costs. Because Double Vision only checks for your *first* instant or sorcery each turn, you can repeat this exact sequence every single turn to keep the game permanently locked down in your favor.