If this is the wrong place for this then I apologize but I did not want to make a thread just for this and feedback is in the title.
The amount of bosses that need purify is ridiculous, at least how purify is in it's current state. Slow moving, limited range projectile with the smallest of hit boxes makes bosses hard - not because the boss is hard but because you're fighting the only skill usable to damage it. This is the first time I've played Median XL on Ladder and had a need for an account for trading etc but every time I play this mod the purify mechanics turn me off and same with the people I know that play. Something's gotta give, either purify should be adjusted or bosses shouldn't be 'hard' because of a bad mechanic and remove the purify aspect to some of them. It's stupid to have bosses where all my gear, offensively, makes no difference - Atanna Khan comes to mind, where I can just change my entire gear set to be defensive as my only dmg source is either a ring or a charm that you get far too late into the game for how much purify plays a role.
Some suggestions:
Purify temporarily makes bosses vulnerable to normal damage - maybe at a diminished %.
Purify applies a debuff for a certain time, that increases subsequent purify hits. Allow this to stack so consecutive hits do more.
Purify is no longer a projectile but a small aoe on the ground, like the mind control mechanic.
Lower the cooldown of Purify
Increase travel speed of Purify.
Increase the hurt box of Purify.
I'm sure there are other easy to implement kinds of things to make it not feel so awful. Running around for 15minutes while you purify something exclusively is not fun in any capacity.
If I am missing something regarding the purify mechanics, please let me know. The amount of time I have had to spend on bosses that deal with purify just because of these clunky aspects is frustrating to say the least.