Pitiless One is a Magic affinity champion from the Knight Revenant faction. His main feature in this game is his job in spider. How? Honestly, limited utility. He offers very little inside of other aspects of this game, so I would not bother to level him up, and rather allow him to guard the vault. If you do choose to build this feat of a champion, you would be well reminded to ensure he has enough c.rate to gain full benefit of his kit. His aura does bring this requirement a little easier, if you choose him to be your leader. This all in mind, I find it hard to suggest any time in minitour, and his books serve him very little purpose, therefor leaving him un-educated is best.