i think they should incorporate more conal attacks and less of the whole area of effect attacks. lower the MP cost of -ga spells, maybe even implement a skill that allows the CNJ/THM to -ga their next spell for the same amount of emnity/mp cost as the normal spell. put it on a 30 sec CD for maybe those times that the mob does their AOE attacks.

having more conal attacks gives more room for positional fighting. melees can attack from the sides while anyone in the front or in the back takes dmg. it might not get rid of the 5 arc/ 2 cnj/ 1 gld parties but it creates less of a liability for melee DDs and adds more strategy in battles by making sure people stand in the right positions