Shadowheart is the only character I don't want to play cause I'd like to see her story unfold from the outside.
I would either play Wyll, Lazael or Astarion. I do hope for Wyll there is the option not to dump Mizora but have her interact with the party in some ways, maybe at camp like Helsin. And I do hope we get to see her wings like in the artwork. Well, one can dream.
