Echocasting Symposium + Capture of Jingzhou + Archaeomancer

Echocasting Symposium

Capture of Jingzhou

Archaeomancer

How it works

1. Cast Capture of Jingzhou by paying its mana cost, causing you to take an extra turn after this one.
2. Move to your next turn. At the beginning of your precombat main phase, Echocasting Symposium's paradigm ability triggers, causing you to cast a copy of it from exile.
3. Resolve the copy, creating a token copy of Archaeomancer
4. When the Archaeomancer token enters, it triggers, returning Capture of Jingzhou from your graveyard to your hand.
5. Repeat.

This brilliant sequence achieves absolute dominance by chaining extra turns into a self-sustaining loop of arcane recursion. By casting Capture of Jingzhou, you secure the extra time needed to set your engine in motion, while Echocasting Symposium acts as the engine's catalyst through its paradigm ability, letting you cast a copy of it from exile at the beginning of each first main phase without paying its mana cost. Each iteration brings forth an Archaeomancer token via the symposium's copy effect, whose entry trigger reaches into your graveyard to retrieve Capture of Jingzhou so the cycle can begin anew.