if he was why did oda make him look like a potential Threat in the manga.Lucci is at best on Franky lvl now .. M3 are out of his league. M3 training 2 years with special treatment and teacher aren't for joke.
Nothing shown that he is potential threat to Luffy now... if he is part of Cp-0 , I believe he isn't the strongest among them.if he was why did oda make him look like a potential Threat in the manga.