I still have my doubts about locations factoring in, but suppose that these new transformations really do have some negative side effects, like an alteration of their abilities, like they gain New Powers, but at the cost of losing some of their Old Powers, because I have noticed that some of the Good Changelings have Bigger Horns, some have Smaller Horns, and some have No Horns at all, does that mean that some of them Can't use Unicorn-like Magic? And as suggested by the IDW Comics revealing of Chrysalis's Origins(be they Canonical or Not), the Evil Changelings may be Undead, meaning that they are neither truly Dead or Alive so they may very well be Immortal, and can Never Die even if someone tries to Kill them, but if the Good Changelings' transformation caused them to become Fully Alive, that might mean that they are now Mortals that are susceptible to Death, or what if the Changelings actually need their Queen for something Super Important or else something Tragic will happen to them be they Good or Evil? Well whatever the reason there Must be something that makes some of the changelings wish to remain evil & serve Chrysalis.