An easy way to get xp it to go to the tower of valni, obviously. But the trick is to pick three of your units that have the most defense, line them up on the fist set of stairs, without any weapons, have the one in the middle one space up ahead of the other two. Pick a unit that is really low level and set him up behind the middle person make sure that they can attack two spaces away and have a healer behind that guy, lure them ine with a strong character with no weapons and kill them to gain easy experience. This trick works best onthe first floor, just dont go to the next floor and repeat the trick.