Grandmaster's Training Manual
Double-click to use. This item will unlock the ability to spend up to 30 points in all trait lines, and will refund your currently spent trait points. This item can only be used once.
— In-game description
Grandmaster's Training Manual was a trait manual that gives access to the grandmaster tier of traits, allowing up to 30 trait points in any single trait line. Players had to first unlock the master tier with a Master's Training Manual before this manual could be used.