Ive been using this formation ever since ive gotten it. Using the Formation Skill makes all the random battles trivial. Especially once i got Richard a firefly rune. All random battles are one round usually dropping 2-3k per mob with Richard tanking and taking around 50 hps of damage. Used it for all the "boss" encounters except for the Ruins with the same result...one round kills.
Other characters in the party include Hero, Lyon, Zerase, Belcoot...the 6th kept changing...either Zegai, Nikea, or whoever I wanted to try out. Now its Bernadette. Average level is around 40...Not sure what Richards level is.
My question is this, does this trend continue in the later stages of the game? I really enjoy this game, but if I will be able to finish this game by just picking this skill over and over again Im gonna be a little dissapointed.