Taking its name from the stories of Jack Vance (one of Gary Gygax's primary influences for D&D), Vancian Magic has come to mean the "memorize-fire-forget" used by all editions of D&D and AD&D up until D&D 3.5 and the Pathfinder RPG.
The game character must memorize a fixed number of spells from the list of all spells the character knows. This memorization can only occur once in a specified time period, usually a day, or it may require the character to rest for several hours. This system is sometimes called "Vancian" in the game designer community, since its first use, in Dungeons & Dragons, was inspired by the way magic works in Jack Vance's Dying Earth world.
The game character must memorize a fixed number of spells from the list of all spells the character knows. This memorization can only occur once in a specified time period, usually a day, or it may require the character to rest for several hours. This system is sometimes called "Vancian" in the game designer community, since its first use, in Dungeons & Dragons, was inspired by the way magic works in Jack Vance's Dying Earth world.
