Originally posted by: Kraco
Technically Byakuya isn't a bad guy. He's just extremely unsensitive and sticks to the law till the end. He's one of those people who think the letter of the law is more important than the spirit of the law. However, that doesn't make him a bad guy. Rukia broke the law and obviously her offense was bad enough to warrant a death penalty.
Yeah, I knew that. I was just using "goodguy" and "badguy" in the traditional sense of the terms (as in, the good guy's energy is usually pure white, and the baddie's is black). I like how Bleach made the contrast in this episode, and I was just wondering if the colors of their energy's are more of a metaphor (maybe Byakuya's white reiatsu stands for the Justice of SS), or just for style (like how Byaku = white, and as you said, nothing else but Black would fit Zangetsu).

Also, Tousen obviously has multiple attacks with his Shikai. We saw him use one against Ishida and the other against Zaraki. I don't think they are separate forms, just different abilities.