The Tavern

Confusion making SH from an amulet or a god 0 feels really silly please fix it.

Making jewelry not be multiplied by the Tengu flight buff means the devs don't want jewelry to be effected by status conditions anyway so while you are at it make rings of evasion not be turned off when paralyzed, petrified, or asleep.

Implemented as https://github.com/damerell/crawl/commit/922b26c83f102b43a334a04ad1cd733f1c3afe24 which I guess vanilla may want to take.

I wonder whether the same rationale (halving SH because the bony plates are still in the way, but are easier to avoid) could also apply to shield-based SH?

I felt that would be too much of a nerf to confusion. The shield is dangling uselessly at your side. The bony plates are stuck to you, so can still provide some protection.

I think it's getting too complex to identify sources of SH and make some affected by confusion and some not. It would be better to make SH either unaffected by or completely disabled by confusion.

If some sources of SH should be disabled by confusion but others not, this would need to be communicated to the player. Otherwise this will become a hidden game mechanic explained by Sequell to experienced players and a source of confusion for everyone else.

I'll grant you the halving of mutated SH is basically pointless overdesign, but I don't think "shields don't work, gods and magic do" is too baffling - especially since I think the overwhelmingly most likely case is that the player wearing a +n amulet of reflection will find they have SH n when confused.

IMO confusion is in a decent place. It's far weaker than paralysis, but still a risk to player turns/defenses and still useful on monsters. Gimping its impact on shields makes it significantly less threatening...and less useful. Melee characters might barely notice in some situations.

It also has a lot more counterplay than paralysis, and isn't some bizarre asymmetric mechanic like mutations.

I broadly agree with consistency in its effects, but in terms of its effects it doesn't need to be weaker IMO.

As long as you can remove confusion with the most common potion in the game, it doesn't need to be nerfed.