Would you be willing to answer a few brief questions about PlayStation Forums?
While trying to cast any magic spells while riding on tamed dragons. Am able to do this on the PC version, but not on PS3. Any ideas what could cause this other than a game flaw of the ps3 version for dragonborn DLC?
Well, The 5 times I did ride a dragon to get that trophy, I was able to blindly hurl fire-balls. I just pulled out my hands like usual.