Hey! Thank you for the mod — and just as nice — the speedy updates. Over the course of a ~100 hour playthrough I completed in the last two weeks, I've seen a pleasant amount of new content. Onto some comments I've had brewing while playing though. First off I felt fairly restrained by the inability to play with /just/ Umbral weapons, I only got to taste up to Wall of Flesh Astral weaponry. It's a big component of the mod but maybe add a Post-ML/WoL option for that? Sort of like the damage type alteration. Secondly and more personal(read: just to fill out this paragraph), Jhin outclasses Der Freischutz by a MASSIVE amount, those two weapons are worlds apart despite being a part of roughly the same phase of the game. Those are the only issue(if you can call them that!) I found with that aspect of the mod. Lots of fun references, even some super niche ones.
As for bosses — Ink Witch's theme is my favorite for reasons obvious for song choice. But the casted attacks system feels a little weird. The damage isn't instant after the cast timer ends like in FF14 so I feel a little gimped for feeling urgency in escaping an attack. Mind you, I was playing on a server so that might have been a part of the issue but generally this seemed to be a large part of the Nalhaun fight. Ars Laevateinn has this weird segmented casting time? One timer once the attack appears and another for the spin to occur. Maybe I missed something there.
As for the meat of the Stellar system. The Array and Novas. The Stellar Array is pretty good, as far as I've seen the numbers feel balanced, the Queen Bee passive being nerfed as I felt it should have. However, Nalhaun's passive feels weak, at least for bossing there seems to be no point to running it(when everything else has some applicability in a 1v1 fight). Novas, I think that the big counter attack should have more effects to make proccing it accurate. The glow isn't very noticeable and sound clip gets drowned by boss fights, especially in later stages(+Calamity Post ML content).
Speaking of compat with certain mods. Specifically difficulty tweaks. I would /love/ for Calamity big difficulty settings to add or lock certain aspects of the mod. Like losing stellar nova upon getting hit for massive damage, increasing damage to match. Array alterations, the works. But! Most importantly.
Wow, what a fun experience. Honest.