This number depends directly on how many books in the series have been completed ("Grandmaster rank"). With each additional book completed, the player chooses one additional discipline. The Grandmaster series is different from any in the previous series of books because it gives Lone Wolf spells to use which grow more numerous as his Grandmaster Rank increases.
The total depends on how many books in the series have been finished ("Grandmaster rank"). Each additional book completed allows the player to choose one more discipline. The Grandmaster series differs from previous ones because it grants Lone Wolf spells that increase in number as the player's Grandmaster Rank grows.