Here's my feedback - ran it 3x on Normal on Lam. To be 100% honest I am disappointed in the raid. Mainly due to the scope of the raid. I was hoping for a raid with length and complexity akin to Deathwyrm or Strahd or Skeletons, considering we are only getting 1 raid, not 2 like so many past full expansions, MD is not a mini expansion. Vecna Unleashed being a mini made a small scope raid like Fire Over Morgrave more acceptable. But this is a full expansion and the scope for the MD raid is basically the same as Morgrave. That's not ok. If we had 2 raids I'd feel differently.
I'm concerned we just won't get bigger scope raids ever again, if we're not getting them in a full expansion with only 1 raid.
Considering we only have 1 raid, it needed to be bigger in scope and complexity than this. More mechanics, more phases, a unique end boss, puzzles (there's no puzzles at all?), platforming optional section possibly? It's mostly just a DPS beatdown, there's very little in terms of party coordination. The map is too simple and small in scope. I don't think there's any new art assets unless I missed something.
The raid is too short considering it's the only raid in a full expansion. It doesn't feel like a grand pinnacle of an expansion the way Skeletons did. I'm assuming there's no secrets to discover either in an optional in the way Skeletons was. If there's a secret section of the raid yet to be discovered that may change my opinion.
I also have to echo the opinions of others on the raid boss - it's really disappointing we're getting a 4th dracolich raid boss. The end boss should be something new. I'm not a P&P lore expert by any means but is there not some kind of other big bad in Myth Drannor we could be fighting instead of another dracolich?
If we had 2 raids in this expansion I'd feel differently. But considering this is it, it needs to be bigger in scope. I'm sorry I have to be so negative, but this is how I honestly feel.
My suggestion and hope is that the raid is brought back to the drawing board and changed dramatically. I'm completely fine with this being delayed for a few months. Spend more time on it please. The devs can do better than this.
As far as things already in the raid I'd want changed - can we just drop the barrier in between Marilith spawns? Or make the crack clickable without having to hard target? It felt very finnicky to have to hard target to select the crack, click on the character portrait, and then click use, considering it's on a time limit. So many things in DDO requiring this process bugs me a lot in game generally, but especially when on a timer, it's not good.