From publisher blurb:
This mini expansion for warlock contains expanded and extended magic rules.
Wild Magic
Magic is rare and largely unknown. No one in the Kingdom, not even the most powerful mage, has compiled an exhaustive list of spells - such a task would be unimaginable. All wizards guard their treasures well, and do not spill their secrets even in death. This is further complicated by the large number of incomplete and dangerous spells that are in existence, making casting something newly discovered in a wizard's manse a dangerous proposition.
This mini-supplement for Warlock introduces new spells, rules for wands and staffs, new magic items, new community wizard careers and discusses what can happen when someone tries casting that spell they 'liberated' from a wizard's pocket..