I'd say...Luminous, Zero, Xexon, NL, and I/l

Luminous and Battle Mage come to mind if you ask me.

luminous, zero, i/l, phantom, and dualblade

Lumi, Demon Slayer, Aran, Night Lord, and Battle Mage

Shadower definitely up there, our mobbing skills does so much damage, at 180k self buffed I can do 10m total each mobbing attack. And our lv170 hyper skill is OP, it hits the whole map for a good 12seconds dealing damage to every monster every .5 secs.

luminous and battle mage are definitely the top two. i'd say the rest is a toss up

Luminous, Phantom, Cannoneer, Demon slayer, Zero.

Luminous, Battle Mage, Demon Slayer

Luminous, Zero, Wind Archer, Dark Knight, Demon Slayer

Luminous, Zero, Night Lord, Wind Archer, Demon Avenger