Gaddock Teeg

A prison piece dressed as a hatebear, and the cleverness is in what it leaves open. The body taxes nothing of its own but draws a hard line across the rest of the battlefield: nobody, including its controller, casts a noncreature spell that costs four or more, and no noncreature spell with X in its cost can be cast at all. Creatures still resolve, so it sits comfortably in green-white strategies that win through attackers rather than sorceries. The X clause is the sharper half: it shuts off Fireball-style burn, mass X-removal, and the noncreature mana sinks ramp decks lean on, regardless of how much mana those decks have generated. Note the seam, though: it touches only noncreature spells, so an X-cost creature like Walking Ballista walks right through it. The restriction cuts inward too, which keeps the design disciplined: a deck fielding this can't run its own four-cost wraths or noncreature X-spells while it stands, so it demands a curve built beneath it. The body is fragile, dying to almost any cheap spot removal, but that is precisely the asymmetry the design is built around. It doesn't protect itself; it warps the answers a deck would otherwise reach for once the game goes long. A wrath becomes illegal, an X-burn finisher becomes dead in hand, and a cheap green-white creature deck buys the time it needs to close.