Kuja, Genome Sorcerer // Trance Kuja, Fate Defied

At the beginning of your end step, the 3/4 body manufactures another 0/1 Wizard that pings each opponent whenever you cast a noncreature spell, and here is the quiet part: those tokens are themselves Wizards. Leave Kuja alive across a couple of turns and the board assembles the exact condition (four or more Wizards) that flips him without you ever spending a card or an activation on it. The transformation is self-fueling, which makes the front half read as a slow, defensive drip while it is really counting down to something else.

Trance Kuja, Fate Defied is where the halves lock. Flare Star doubles every point of damage any Wizard you control deals to a permanent or player, and by the time the flip happens you own a small army of them. Each token now deals two to each opponent per noncreature spell, and every attacker in the tribe deals double its damage. The design turns a subtly-built tribal board into a burn multiplier at the moment of transform, recoloring a token generator that plays defense into an engine that closes from across the table. The payoff for committing to Wizards is not one oversized threat but a compounding rate: more tokens, more triggers, and a doubler applied to all of it at once.