For quick experience at the start of the game go to Astos castle. After you get the Mystic key you can go into the treasure room. There are three chests and in front of each one there is always a fight. It is usually either Mummy's or Images. If you have Harm2 and Fire2 you can defeat them without much trouble. Each time you step in front of a chest there is a fight so you can get quick experience. You get roughly 60 ex. for each Image and 75 ex. for each Mummy. They come in packs of 3-6 and give good money too.