Rograkh, Son of Rohgahh / Thrasios, Triton Hero

How it plays & wins

Rograkh and Thrasios lead a blue-green creature shell that plays tempo-midrange. It opens with Moxen, Sol Ring, Birds of Paradise and Elvish Spirit Guide, then protects its development with a thick layer of free interaction: Force of Will, Fierce Guardianship, Daze, Flusterstorm and Pact of Negation. Rhystic Study, Mystic Remora and Thrasios's draw ability keep cards flowing. Worldly Tutor, Green Sun's Zenith, Chord of Calling, Imperial Recruiter and Crop Rotation help it find whichever piece the game calls for.

The win condition isn't clearly defined, and I don't see a hard-coded combo. The likeliest route is a mana-heavy turn built on Gaea's Cradle, Seedborn Muse, Cryptolith Rite and a wide board. That mana would feed Chatterstorm, Finale of Devastation or Candelabra of Tawnos, while Hullbreaker Horror lets the deck keep casting spells and bounce opposing answers. It probably wins by converting a resolved engine into a lethal swing, though the list doesn't spell out exactly how.

Analysis written with AI assistance based on this decklist.