these changes, Lead Rules Designer Jeremy Crawford said: "We decided that if we're going to bring in Bladesinging, then we should bring in the cantrips that we originally designed to go along with that subclass. So that's the main reason those cantrips appear in this book. Then, in the process of bringing them over, we decided to make a few tweaks to those spells so that the wording would better align with our original design intent". Spell preparation and casting Wizards cast their spells by using their acquired magical knowledge (augmented by their Intelligence score) and experience. In particular, they learn most new spells by seeking out magical writings and copying them into their spellbooks, a method that allows them (unlike sorcerers) to master any number of permissible spells once they find them, assembling a broad and versatile arsenal of power. Many wizards see themselves not only as spell casters but also as philosophers, inventors, and scientists, studying a system of natural laws that are for the most part unknown and undiscovered. Once the 3rd edition introduced skills to D&D, wizards' best skills became those that involved either magic or other scholarly or applied knowledge such as history, nature, and geography. School specialization Wizards may specialize in one or more of eight schools of magic, choosing their specialty at 1st level. Specialization was introduced in the 2nd Edition of D&D (although the 1st Edition included the Illusionist as a separate class similar to wizards). In Edition 3.5, specialist wizards can prepare one extra spell from their chosen school per spell level each day, while as a consequence of their more focused studies, they also give up the use of two schools of magic other than Divination (note: specialists in Divination only give up one school). There is the "Master Specialist" that allows a wizard even greater power in one school, but it also further reduces their range of spells to choose from. The eight schools of magic are: Abjuration: spells of protection, blocking, and banishing. Specialists are called abjurers. Conjuration: spells that bring creatures or materials. Specialists are called conjurers. Divination: spells that reveal information. Specialists are called diviners. Enchantment: spells that magically imbue the target or give the caster power over the target. Specialists are called enchanters. Evocation: spells that manipulate energy or create something from nothing. Specialists are called evokers. Illusion: spells that alter perception or create false