Actually, since we have a dragon with polymorphism, I may put a dragon of my own in, just with a multiform ability instead of polymorphism (meaning he has three different forms with unique abilities). I'd like to get some feedback before trying this, though, but he certainly won't be a dragonslayer.

With the way I've built the character I have in mind, it would certainly be interesting if I made an exception and said he's not immune to mind control and he were forced into his most powerful form until the spell was broken (this form would be his feral form, the one that walks on four legs and is huge like most dragons).

If enough people are okay with this, I'll do it. But I'll still be planning out a Witcher in case this doesn't go over too well.