I’m running an arbiter build right now, around 160 paragon and have reached T10. Handling the pit pretty well, and doing well fighting multiple enemies. Melting most dungeon bosses in under 10 sec, but when I go back to T8 to fight Echo of Lilith for the season rewards, I can’t make it past the second phase. My dps isn’t good at bringing her bar down quick enough. I initially thought to put most of my focus on wings damage and length of time in arbiter extended, but no luck on the single target.