Sasuke Uchiha has the Sharingan Eye. For neophytes to Naruto out there, the Sharingan is the most overpowered dojutsu (eye skills) in the series, with the exception of Rinnegan. The Sharingan can predict opponents movement before they even strike, it can paralyse opponents, it can make opponents see illusions, it can make opponents kill themselves, etc. This is just typical Sharingan powers. The Mangeyko Sharingan is like Sharingan on steriods. Mangeyko can do EVERYTHING the Sharingan does but 10 times stronger, plus it can summon black flames that cant be put out by NO ONE other than another Mangeyko Sharingan Eye users. It can burn up ANY material....ANY!! The Mangeyko can summon black holes too as well as sum other vague shít.
Sasuke in Naruto Part 2 can do ALL that (minus black holes) plus summon GIANT SNAKES, manipulate electricity, manipulate fire, and do countless jutsus. Sasuke also moves faster than Flash (DC comic hero).
Now Vergil, although half demon, cant do NONE of that shît!