That's the thing, apparently in the Game, Amy-char is not really that strong before the War plot, which is apparently also why she and her group (aka., Prince & Co.) had to flee the Kingdom while the people were getting killed all around.Except that if you play games, if you're underleveled, you're only going to get rekt. She's vastly underleveled and undergeared. MC took away everything. She can't win a war.
Apparently, the strength gathering part of Amy-char in the game happens after the Fleeing plot.
Not sure when she was supposed to get the "Appraisal" & "Chantless" skill, but the "Concealment", "Wind Magic" & "Multi-Chanting" skills were supposed to be gotten after the War & Fleeing plot.