Clarity
Clarity is an intrinsic which protects you from most sources of confusion and mesmerise, and from going berserk unwillingly (though you may still intentionally go berserk as normal). Clarity shields you from the confusion and damage effects of Mephitic Cloud and other sources of noxious clouds.
Clarity does not protect you from the following:
- Mesmerisation caused by the obsidian axe
- Confusion inflicted by Xom
You can acquire it from the following sources:
- Amulet of clarity
- Randart amulets that have the clarity ego
- The Autumn katana unrandart
- Clarity mutation
- Ashenzari grants it at ***... piety
Strategy
Avoiding confusion is critical in certain portions of the game. Confusion caused by enemies like golden eyes and swamp drakes can be extremely fatal if it hits at the wrong time; it may be worth avoiding branches they can be found in until you find a source of clarity. Mummies in particular should try to acquire clarity, as they are the only species incapable of quaffing a potion of curing to remove confusion.