In your opinion, which hero has the most charisma in the campaign?

1) Why couldn't they return to the Empire with Railag?

This is one of the plot's shortcomings; the authors don't explain it. For example, it remains a mystery when False Isabel replaced the real one. In general, this question has been raised on forums more than once... Fans came up with their own explanations, and it turned out to be more or less logical and consistent. I don't remember the details anymore. But IMHO, it's a plot hole. Or it's just that the Ubisoft developers were lazy. Either way, it didn't turn out well >_< Laslo is a warrior. He doesn't care about anyone or anything; war gives him pleasure, and the only thing that matters to him is the king's order. It's not his job or his nature to think about these orders... He is cruel and heartless. An ideal warrior. Biara successfully manipulated him because of this :) Hmm... Actually, each hero played a very important role in the plot, whether positive or negative :) For example, if there had been no Faidaen, the elves might not have survived against the undead. If there had been no Biara... well, that's obvious :) And so on. Isabel, of course, messed up, but on the other hand, she lost her loved one, and, as has been noted, the empire was left without an heir. That is, there were at least two good reasons to bring him back to life :)