As part of its 12 Days of Fandom, Mattel has revealed the MEGA Pokémon Motion Magikarp. The new MEGA set will be available exclusively at the Mattel Creations booth on-site at SDCC (Booth #2945) and in limited quantities online at Mattel Creations starting Friday, July 21.

Not only can you create Magikarp using MEGA blocks, but you can turn the crank to activate the beloved Pokémon’s familiar motion. Magikarp’s flopping around may have no effect in encounters, but it’ll steal the show in your display case. You can even adjust the base to see the mechanism inside!