[MothEnthusiast]

Title. Bosses get immunity from, to my knowledge, charm, fear and confusion. Probably more than just that, but I'm not certain. Now, this isn't really a case of 'oh that's too strong!' so much as it is a case of unnecessarily shutting down certain build components. A charm-based build is inherently going to get to use less of their kit against a boss than someone who just smacks for big damage.

A hexer has no reason to go Death Knighting against the big bad (even though transforming seems like something you'd WANT to do against your strongest enemy) because their main passive is useless. Note, I'm arguing for removing BASE immunity for bosses universally. In its place, I'd suggest more fine-tuned resistance passives on a case-by-case basis, similar to what the [REDACTED 100] mobs have. A +75 charm res and +50 confusion res for Alraune, as an example. Make it challenging, but not impossible. This also lets mobs that have OTHER reasons to be immune (Spectre Knight fear immunity because undead, as an example) shine more uniquely.

Basically, this is just to make it so there's a PVE reason to run every build, instead of just arbitrarily telling a BK/Ghost he can't be scary, or a Performer that he can't be (magically) charming.