Well, I'm used to convoluted explanations, so if it turned out that there were extremely complicated explanations behind the various mysteries of this world I'd be fine with it. What I wouldn't be fine with is the idea that there was no explanation for it whatsoever.

...actually, I was referring to the fact that they have less reasons to rampage given that they're born into this era rather than suddenly being revived into it. I haven't actually looked that much into breeding yet given that I'd like to perfect the potential parents' movesets first, though... it is a bit comforting knowing that there are ways to ensure certain temperaments. I've had rather strange experiences with eggs I've hatched-several of them have actually taken after me, while several have turned out to be vain, stubborn, and prone to gloating.

[...so they've taken after you then]

Though... you're interested in Ghost Pokemon, then?