with 300 mana / 10 sec u cant rely only on mana potions confirmed.
if it was 1000 maybe but its interlude and not hi5
in hi5 mid rates they dont use elders bcz bishops have sublime to restore full mp to whole party
also for supports bd/sws/wc are essential because of the cancel skills/noize skills and also 3rd proffesion buffs
its the same as l2 realm where u had to use every class