Ephemerate + Archaeomancer + Time Walk

Ephemerate

Archaeomancer

Time Walk

How it works

1. Cast Time Walk by paying its mana cost, causing you to take an extra turn after this one.
2. Cast Ephemerate by paying , blinking Archaeomancer and exiling Ephemerate.
3. When Archaeomancer enters, it triggers, returning Time Walk from your graveyard to your hand.
4. Move to your next turn. At the beginning of your upkeep, Ephemerate's rebound ability triggers, causing you to cast it from exile without paying its mana cost.
5. Resolve Ephemerate, blinking Archaeomancer.
6. When Archaeomancer enters, it triggers, returning Ephemerate from your graveyard to your hand.
7. Repeat.

This Vintage-legal loop locks down the game by chaining infinite turns, powered entirely by a clever recursive engine. You kick things off by casting Time Walk to secure an extra turn, while using Ephemerate on Archaeomancer to retrieve Time Walk from your graveyard as soon as Archaeomancer enters the battlefield. Thanks to Ephemerate's rebound ability, you get a free cast on your upkeep to repeat the blink, which in turn returns Ephemerate itself back to your hand for the next cycle.