Thanks for the feedback!
Music: This is the part of game making I can't really do well myself... Maybe someone else at Ludosity can do it for me, but they're all pretty busy at the moment.
Tutorial: I feel that as long as you can learn a game by playing for a while, a few matches, then no tutorial is really needed (there's a joy in learning after all)... That said, some pointers might be good like "these are your spells" or things like that. Perhaps the first story battle should be untimed and have hints. Unfortunate that Ancient King isn't the first match in story.
Escape Key: Literally pressing escape or backspace could be a good option to add... You see, the reason there's no back arrow on character select is that it visually doesn't fit anywhere without ruining the screen visually... lol
Puzzle Editor: Actually might not be that hard to do, I could see it happening in the future.
Metonym: A lot of characters are mostly made on a whim, hoping to balance them after they've seen some play... So she could totally be bad right now!
Maybe she could benefit from Gogo Stones (puts more blood on the board) or Sacrifice (to pull units back without blood cost)?
Spectre: True, I hadn't really thought that one through... If Spectre turns out to be bad, that would be a good target for a buff then.
Kristian Maria: Panties on top of tights is the new thing, you heard it here first!
I've had this puzzle crash reported from someone else as well, it's very puzzling.
I'll look into the near-timeout desync, I have a decent idea of the problem there.
As for the wait there, the thing is this online (my first!) is built sort of on top of the "play by message/e-mail" system where you send codes back and forth. It's too annoying to fix, but I've learned my lesson for future games.
And it's pronounced Excess! Because there's just too much of it ^^