"Give you a brief description of Itto. High attack, low defense. His Q will switch his weapon to a Mace, need to stack some things and needs to stand on the field for a while. There is little self-protection ability, guess Zhongli will still have to be used.
For his Q you need to stack defense, and his designated Artifact is coming in 2.3. I don't know how much defense added. The specific damage/bonuses can only be determined after the artifact comes out. (Leave it to nga to calculate at that time)"
NGA
Edit: People are confused about his low defense and Q so I read though the comments from the NGA op. People speculate Itto's Q works like Noelle's so no scale splitting.
(NOT from the leak, only speculation in comments)