Before I say anything, let me get this out of the way. I love this mod, one of my favorite modded bosses and really a true challenge to master.

That being said, there's three things I think should be looked at.

One: The thunderstorm attack. It just doesn't work imo, it's far too hard to see a pattern in and the sparks have just enough variability that you can't really be consistently safe. It's also too long, I thought the mod was broken until I actually got to the end.

Two: When he first does the snatcher beams, the damage hitbox stays on the beams long enough that you cna become trapped with no option but to try and dive towards the beam taht's going off, only to be damaged when the attack should be over. During the third phase they go off so quickly that this isn't a problem.

Three, and this is more general: He gives you almost no time to hit him during the spin attack once he's dizzy, especially with the 3 in a row pattern of sandbags which forces you to one side, if he gets dizzy over the other side from you, you'll never get there in time. I think it's not fair to force players to equip either brewing hat or the lazer badge just to hit him.

Also, I personally have yet to find a way to avoid the sparks in the sudden death phase, and have to cheese it with either time stop or ice hat, which is rather anticlimactic.

These are just my thoughts, again I really do love this mod, and most of these new changes are great, I really like the BG change during phase 2. Hopefully this comes off as constructive criticism and not just me complaining.