aco175
Legend
Is the term something for gameplay and for players to understand or for the NPCs in the game to use in common discussion? If it is for players, then just use something simple to get the point across like meta-magic or high magic. If it is in character, then use anything. Cesar did not mean Cesar/emperor/king/ruler until Cesar made it so. The first all-powerful caster may have been named Buckets and the term BUCKS is now what everyone uses. Add some backstory to the world.