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But it also shows up as sideboard tech in some Izzet Control decks, and above all in some Izzet Lessons decks which is the deck with the largest metagame share in the MTG World Championship

Every reasonable test done to it has resulted in me being positive its a legitimate card

The design team had figured out how to do double-faced Planeswalkers with the pre-igniting side being a legendary creature and the transformed side being a Planeswalker

Mono-Red is already a standout deck in that format, and the ability to more consistently splash Klothys, God of Destiny - maybe never exposing a second source of Green an entire long game - seems like an impending technology reboot for the format