The Chayncemaniac

That's a good question. I'd want to say so...cause Yugi's deck remained the same with small changes until his final Duel with Atem (as well as DSoD), Yusei's practically was the same from start to finish, Yuma's updated his with the Duel Sanctuary (like how Jaden did after gaining the NS/Neos deck), Yuya's namely deals with Pendulum until finally gaining access to the others and therefore his endgame playstyle changes but deck remained the same with Odd-Eyes/Performapal/Magician. I know jack all about Yusaku and could care less about Yuga from Sevens. But you may be right...

Well cause I'm playing through Legacy of the Duelist: Link Evolution, and I'm on the GX story and I noticed he pretty well integrated Chazz's Ojamas into his deck after Chazz becomes a member of the Society of Light, I'm sure he's integrated more but that's a big one I've noticed 

Oh yeah, the Ojama HERO deck. That one was pretty much an integration of a one time thing, in generally anything. Least I believe that's the only integration he's done. He's used single cards given to him by friends when needed...and I know Jaden has given cards to others to help, like Master of Oz to Chumley but yeah.