Rogue/Items

Armor
A higher AC gives a better chance to avoid damage.

Older versions of Rogue used the decreasing AC to represent better armor (also shown in the table).

Scrolls
Some scrolls require certain conditions to be met. If they aren't, you see the message "you feel a strange sense of loss".

Rings
The rings that provide bonuses may either give +1 or +2, but can also be cursed and give -1 instead.

Rods
Rods can either be wands or staffs. While there are differences between them, they are minor.

Staves normally appear with 3-7 charges.