Iscat

Far bigger than any ordinary feline, Iscat carries itself like royalty, crowned and draped in robes across its back. The crown did not survive its brief skirmish with the Straw Hats. It can also take on the shape of a lion.

The creature turns savage on anyone who intrudes and lashes out without pause, yet it grudgingly let itself be ridden by the Straw Hats for a time, all while vowing to get even with them. Both feared and worshipped by the people of the diorama, Iscat is treated as the rightful master of Bigstein Castle. It is remarkably durable, staying conscious even after being run through by the Needle God's quills and jolted with electricity at once, and it strikes with crushing swipes of its paws. The cat seemingly shifts into a lion form, though whether this springs from a Devil Fruit or is simply natural to its kind has not been clarified.

Iscat caught Usopp in its jaws inside Bigstein Castle, prompting Nami to drive it back with a charge from Zeus. The beast answered with a swipe that tore apart part of the castle and dropped everyone to the floor, then closed in on Nami and Usopp in lion shape. Luffy, Zoro, and Sanji arrived in time to land a combined blow that knocked it out and returned it to its normal body. Later, as the crew fled the Sun God, the cat snarled at them again, only to be beaten once more and forced to carry them off. Once they were clear of the Land of Gods, it fled.