Drunk on the Dark Side: Implied. The first scene we get with her after accepting the Shadow Dragon band is to appear to Ang and try to recruit to Take Over the World !!. She keeps behaving like a psychopath through the whole fight. By the second episode onward, while still villainous, she's completely sane again revealing the madness is just transitory. Given what we learn about the Emperor and the inner workings of the verse, it's likely it was just overexposure to the Emperor's Black Magic.
Even Evil Has Standards: She's visibly shocked when she sees the Dragon Temple being corrupted.
The Dragon: along with Yin Wi to the Emperor in Season 2.
No Name Given: His real name is Woo Yin, but everybody call him the Zodiac Master.
Smug Snake: Zodiac Master is this, literally and figuratively. He is relatively clever, but his ego overrides it. That likely explains how he can have three powerbands and still lose to Ang (who only has his Dragon powerband). Also, he was born in the Year of the Snake, and has a pet snake named King Cobra, who acts as a spy for Zodiac Master. Is he reminding you of Lord Voldemort, at all?
Yin Wi
The Dragon: with Zodiac Master to The Emperor in Season 2.