From LSWiki

Description

You have the ability to sense magick in people and objects. This requires you to focus on a particular person or thing, determining whether he, she, or it bears enchantment.

Cost

Drawing as it does only on your own innate potential rather than the facilitating mechanisms of a spell, this ability is fairly costly to your spiritual energy.

Activation

To use this ability, concentrate on sensing magick in your target.

Skill Relevance

three parts awareness, two parts divination

Attribute Relevance

five parts perception, one part intelligence, one part willpower

It must be noted that Sense Magick will only determine item enchantment status of yes/no; it will not identify an item. This is regardless of mastery.