Cultures and Humanities, Disguise, Edged Weapons, Prevarication, Etiquette, High-Society Etiquette, Research, Riding, Sleight of Hand, Three-Dimensional Stealth, and Wilderness Survival added. I didn't give you cold reading, because you seem to talk about studying his marks, and these are split-second judgement (plus, no other assassin's creed characters have taken this skill). I didn't give you swordfighting because that was a specific style in Dolorosa. (Also because... literally nobody has it? Even though lots of people know swordfighting in some style or another.)