He often requires an oversimplified analogy in order to grasp explanations, and can even forget some concepts that he himself noted earlier if he is too emotional.
Soon after, Sai discovered that the culprit behind these attacks was Sumire Kakei.
He became skilled in shurikenjutsu, able to throw weapons quickly and with precision, barrage an enemy using shadow clones, or as Hokage, cross blades with Momoshiki Ōtsutsuki.