SharkLord
Smash Hero
Honestly I'd play a game about that. Spain comes to the Americas, tries to conquer them, and then gets beaten up by the Aztec deities. Or the Mayan ones. Or the Incas. There's a lot to pull from, really.If anything, it would be more fitting if that Pokemon had a vendetta against the Spanish region.
The people who worshipped said god getting conquered by the Spanish Conquistadors does not make Quetzalcoatl suddenly Spanish, no matter how much some games try to associate Quetzalcoatl with Spanish or Mexican stuff, like lucha libre.
To be fair, Mexico does retain a decent amount of its pre-Colombian cultures, so I can at least see where the association between Quetzalcoatl and Mexican culture comes from. Heck, even Mexico's flag references an Aztec myth - The eagle sitting on the cactus eating the serpent is said to be what signaled to the Aztecs where to build their capital, Tenochtitlanno matter how much some games try to associate Quetzalcoatl with Spanish or Mexican stuff, like lucha libre.
Of course, Quetzalcoatl is definitely not Spanish. Mexico has heritage from both Spain and the Aztecs (Among other Native Americans), but Spain does not because Spain is Spain and not Mexico, and anyone who says otherwise has clearly bombed their History exams.