Lore wise, D&D uses "Vancian Casting," based off of the Dying Earth book series. The notion that magic spells, especially arcane, are so complex that they require a fair amount of preparation to ingrain in the caster's mind. They're ready at a moment's notice after that preparation period.
Divine magic requires a connect to a deity and as such is a finite resource. Same with the innate magical nature of sorcery (not in EA yet).
Last edited by Ryllharu; 11/10/20 03:01 PM.
