Atraxa, Grand Unifier

How it plays & wins

This is a five-color Atraxa midrange-combo deck. It uses a heavy suite of mana rocks, dual lands, and mana dorks like Birds of Paradise and Noble Hierarch to power out early plays. It also runs many tutors, such as Demonic Tutor, Vampiric Tutor, Enlightened Tutor, and Worldly Tutor, plus a stack of free interaction, including Force of Will, Force of Negation, Pact of Negation, and Swan Song. Rhystic Study, Mystic Remora, and Smothering Tithe provide value while the deck holds up protection.

The most likely win is a tutored Thassa's Oracle with Demonic Consultation or Tainted Pact. You empty your library and win off the Oracle trigger, with counterspells backing it up. Food Chain with Misthollow Griffin is a second route that generates large amounts of creature mana. The list doesn't make it clear how that mana turns into a win, so I'd call it a mana engine rather than a clean finish.

Analysis written with AI assistance based on this decklist.