I have a theory: Pokemon are fused by injecting the DNA of both in a Ditto under certain circumstances which lock its form as is, and the fusion is born. That's my idea. It sort of makes sense. If that were possible, these would be the ones I'd make. Too awesome!
holy crud these fusions are amazing ^^ i remember seeing a fusion of deoxys (speed form) and registeel from you. i had an idea of fusing deoxys (defence form) with regirock, deoxys (power form) with regice, and deoxys (normal form) with regigigas. but idk how well that'd work out it was just an idea since deoxys has 4 forms and there are, technically, four regi's as well. one for each form ^^
i absolutely adore pokefusions and i'm glad i stumbled across yours ^^ you do amazing work with them.