Blue1110...
Dude... And If He Find The Chaos Emeralds, And Take Them? Lol... Be More Pensative. Eggman Has Taked Chaos Emeralds And Master Emeralds. There You Go... That's Why A Robot Can Have The Chaos Emeralds Or The Master Emerald As A Source Of Power.
PD: Shadow Vs. Sonic. Who Wins? Answer: Shadow.