Exigo - Raging Tide Arc User

Dark Elves with Dark Lordish wings and whips and daggers and at level 59 they get a stealth detection skill that boosts their stealth detection level with +8 every level. Demon and Sage skill will make it able to spam on squad members.

nah forget it

You can do the dungeon without having the quest, but then you won't get the NPC reward. You will only get the mob and the boss drops.