I'd help you out if I was on xbone. I learned this dungeon with a super group, and have since walked many players through it.

Some tips to make it go faster/ smoother.

Use morphs for interrupt; crushing shock/ venom arrow. This majorly important for this dungeon. Support skill Purge is handy in here also.

Run through spider tunnels and stack them all up at braziers before boss.

Pull first spider boss to light in tunnel before main room because it doesn't go out.

Next lady boss burns fast in light, needs to be interrupted often, stay out of big red circle, relight blazers soon as they go out.

Next spider boss must follow mechanics closely. Dont get caught between her and wall as big red circle one shots. After big red circle, need an interrupt when she eats something and heals up incredibly fast.

Next boss Dranos. Try to stay to front where you come in at. Is somewhat safe spot especially later when whole room is red waves. Bash/interrupt red dudes that chain down tank....quickly. When invincibie have tank run him around room to kill the adds. It's much quicker/safer.

Veledrith. Set marker on map in middle of room for reference. Tell Tank to not use his ultimate. Everyone else use Ultimates quickly. When you come in room, there's a window off to the left. Tank her under there. It works well.purge comes in handy here if you get poisoned or touch the balls. Keep dots and AOE on her, kill adds. Especially the ones that CC.

Don't move a muscle. Just stop whatever your doing. Move camera to look up at ceiling. Soon as you see her start to drop, dodge roll. There's other clues also like the light coming back on and some audio cue, but looking at her works well for me.

Kill the atronach sand get the lights. When you get banished follow the marker you made at the beginning to get out of there. Don't waste time killing the adds there, just run. The hoarvers will overwhelm you.

Seems like mechanics make you have to get banished 2 maybe 3 times.

Hope this helps.

When I tank this, I put Bow on back bar for venom arrow. My healer has crushing. I also use super high recovery on healer