We learned a lot from that raid.
Everywhere in your encounter space needs to have a purpose. If it doesn’t, try to cut it.
“Ok, you guys stand here and shoot when I yell. I’ll do the rest.”
“No one will solo the Abyss. They have to stick together or they’ll get...oh, look, they’re skipping whole sections... oops.”
“No one will cross the bridge without someone holding the plate.... oh. Look at that. They’re crossing the bridge without anyone holding the plate.”
Again, see point about player containment and compulsory mechanics.
Why on earth did I think this would be fun? There’s no sense in drawing out an experience. Identify the core experience, fill it out, then stop. If it feels like unnecessary steps, cut it.
The reprisal patch changed it so he summoned it after every DPS cycle. Much better implementation.
You can’t keep making changes after a certain point because then the game will never ship.