You can keep it in against Burn, unlike Thoughtseize, but how good is it against a deck like Blue-White Control
Like most Magic: The Gathering cards, the value of Gimbal, Gremlin Prodigy depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (March of the Machine Commander)
It takes six artifacts to craft Tetzin into The Golden-Gear Colossus, but once there, it makes it super easy to transform your other artifacts
Perhaps the handy little token markers will help our dearest incoming players with all the memory work? Then what about the Cycling effects and the 3-and-a-half page essays etched onto Shelob, Dread Weaver
Creatures are bigger, and burning your opponents face with cards like Lava Spike isnt at all a viable strategy