These two look and sound rather similar so this match was a given. I think Mercury would have given Part 1 Sasuke a very good fight and could potentially have even had the edge. That being said, Sasuke is certainly more powerful by the end of the series. He got so many overpowered Ninjutsu and Sharingan techniques that it was hard to keep track of them. Mercury will have to avoid eye contact while also keeping up with Sasuke’s speed and that’s just not happening. Sasuke wins.