. . "The three Fields of Mythal were the way the powerful arcanists of Netheril grouped their spells, similar to the nine schools of magic known to the wizards of later ages. Each arcanist was a specialist in one Field, had minor insight into a second and could not cast spells from the third Field."@en . . . . "The three Fields of Mythal were the way the powerful arcanists of Netheril grouped their spells, similar to the nine schools of magic known to the wizards of later ages. Each arcanist was a specialist in one Field, had minor insight into a second and could not cast spells from the third Field."@en . . . . "Fields of Mythal"@en .