>>50222875>Its genetic code is unstable, so it could evolve in a variety of ways. There are only a few alive. The yellow Pokédex entry claims it's ultra rare, but I don't see how that's possible when literally every MF in the anime has one. Also by game logic they would be super common with catch and release shiny hunters. In my headcanon though they're basically the Pokémon equivalent of a housepet, just with a variety of quirks which make them appeal to pretty much all personality types.