Must I buy some sort of Illusion book? Illusion:Outland only says:
Tome of Illusions: Outland crafted from Tome of Illusions: Outland, taught by Trainer at 350
Teaches: Battlemaster, Spellsurge, and Netherflame (new).
Where's Mongoose?
Or Should I just buy Mongoose enchant itself and enchant whatever weapon, and it'll be in my Transmog forever?