Lune is probably the worst character in the game, only gustave is worse. Personally i use maelle, verso and monoco. Maelle does exstreme single target damage, and verso does single and aoe, so i use them as main dps. If you get in the right move set you can cycle pelerin heal and glaise earthquake.(i use ballaro right now the turn order might only be possible with it. I am thinking about switching verso for sciel because i got the painted power pictos. You can also build monoco with shields buffs and with a certain pictos you get two turns in exchhange for less damage
