Scrolls

Scrolls are not Equipment, and they aren't quite 1-use Items. They carry a single use of a single spell, and are the only way you can use the Counter-spells.

In order to carry scrolls, you need a bag. The basic bag can carry a number of scrolls equal to your Mysticism. Higher level bags can be bought, and can increase the amount of scrolls you can carry.

Scrolls DO take up a turn to use, but they do not cost any MP to use. Once they are used, they are gone forever.

Free Scrolls
Occasionally, from a quest or random encounter, you will be given free scrolls. These are, in essence, shop vouchers. They are commonly traded in this form, and can be used for ANY scroll of the given level, including Counter spell scrolls. This is where most of the scrolls that adventurers have come from.