I've gotten 12 toons through the destiny quests so I know how the Har Shebes fight is supposed to go.
Kill the lich apprentice with the orbs around their head until Shebes' bubble drops.
However in the arena once that happens and Har Shebes becaomes attackable it also has that AoE which can hit for 1.5k+ dmg a couple of times per second.
Is this as intended? Because that would be a long fight if I had to hold everybody up while I pew pew with my crossbow from range on my DT.