Spells in Pathfinder: Kingmaker is covered on this page.
A spell is a one-time magical effect. Spells come in two types: Arcane (cast by bards, sorcerers, and wizards) and
Divine (cast by clerics, druids, and experienced paladins and rangers)
Some spellcasters select their spells from a limited list of spells known, while others have access to a wide variety of options.
Most spellcasters prepare spells in advance-whether from a spellbook or through prayers-while some cast spells spontaneously without preparation. Despite these different ways characters use to learn or prepare their spells, when it comes to casting them, the spells are very much alike.