Magistry

Usually found as small solid pellets of a translucent yellowish-brown or in a thin syrupy tincture stored in a jade -- always jade -- phial, magistry has a potent effect indeed: it may be used to restore spell levels expended during the casting of magic. Each dose (a single pellet or five drops) of this rarest of essence-of-amber will replenish a spell level for a magic-user, though depending on circumstances re-memorization of a suitable spell may be required.

There is a notable hazard to the use of magistry more often than once a day; for each successive dose there is a cumulative 10% chance of instead permanently burning out a spell level. Some insidious branches of the Western Empire force magistry on captive or criminal spellcasters, gradually destroying their capacity for magic.

Magistry is usually found in caches of 2-5 doses.