From the introduction: The system is designed with flexibility in mind. It is intended that it not be unbalancing; in fact it can be run in the same campaign with the normal AD&D Spell Casting system, so that two or more styles of magic are possible in the one campaign. It is also possible to use this system as a basis to almost any other magic style, because of it's flexibility. User summary: This item presents a variant (alternative) spell casting system based on spell points.