THE BACKSTORY, SO MUCH. Not sure about the final skill, I'll have to check out crusaders again, but once again it's late-game so there's plenty of time. I'm a bit on the fence about allowing something that's just "Heal 5 more", but since it's based around items rather than staves I'll choose to allow it. 'Sides, you guys will need the healing anyway.
1st: Thanks Uxie. ^^^ It's a lot more backstory than I give most of my characters to start with, that's for sure. (The only one I put more into was Henry, and that turned out... disappointing. >.>)
2nd: The Crusader's skill Mission From God (only usable once per map, and it has to be my first action not counting moving I think) allows me to declare one First Class and its promotions and when I attack units of that class, I get WTA. The book says, however, that does not mean they don't get WTA as well, so if I were to declare a lance-using class as my enemy and then attacked them with a sword, we would both get the bonuses of WTA. At least, that's my understanding from the wording.
3rd: The healing skill is most useful in the early game, and it will be useful for Vulneraries all game, but when we get to Concoctions and Elixers it won't matter as much. Also, items tend to have a lot less uses per stack than staves, so it's not nearly as abusable. Finally, picking it up gave me the idea for the first paragraph of her backstory, so it has that going for it.
Yeah, thieves are generally an underused class as a whole. Probably because people like combat most and thieves are basically support units. That and if there's a door or chest on the map, they know what they have to do before they get to start fighting. Hopefully we'll get one, if not, eh.