This is news to me Telchar. If they haven't changed since my days, and you'll probably be able to refute/confirm this, it should be a dusty rose coloured prism. They would float or circle around the user and provide various benefits (depending on colour and shape).
Some raised an ability by a point. Some absorbed spells up to a certain level and for a number of charges, then they'd be useless. The "Luckstone" sounds like the "+1 Protection" variant; I'd assume that it acted like a ring of the same sort. If you've got one, you may not be able to use the other. Still, it'd free up a ring space for you.
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Making running away an art form
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