Don't use this if you want challenging battles!

My friend started a new game on tactics advance. He found a quick (moderately) way to lvl up. He went to the mission with the statues on Lutia Pass. He killed everything except the statues (i think mage trouble). He got marche to use first aid until he was lvl 50 (see, moderately). Then when one of his revived characters attacked marche they got 100exp! His clan lvl is 15 and 7 of his characters are lvl 50!
Hope this helps