Smoke is hyperactive and always talks very fast, something she is aware of. This may be a parody to Japanese animation. She usually screams in an insane way while she speaks. However, it has also been shown she can be quite charming. The episode League of Evil explores her personality a bit more, revealing her interests in serenity trances (meditation, that is) and bathroom tidiness. A Bad Case of the Buglies also reveals Smoke to be, at the very least, a feminist, since she kicks Yang after he says a sexist stereotype phrase.
In Welcome to the Dark Tomorrow, after Eradicus unleashes the Dark Tomorrow, everyone's personality is changed. Smoke was also affected by this. During this time, she talked at normal speed( a bit slower), although she still screamed. She was also portrayed as being very nice, encouraging Yang, making him lunch, lending him her sword to fight Eradicus, and explaining how to stop the Dark Tomorrow to him; however, she was still very sensitive about stereotypes, as she kicked Yang out of their house after he blurted out another stereotype phrase.
Smoke is very fast, agile and strong. Her weapon of choice is a huge blue sword. Her other shown power is teleportation in a purple light. Smoke carries purple Prison Prisms. She can also float and fly, and has been shown to be a very proficient fighter. She uses Prison Prisms to, as the name indicates, capture creatures called Forever Friends. Unlike Pokéballs, one Prison Prism can have more than one creature. If the Forever Friend doesn't want to fight, she can force him through a special ring. When a Forever Friend loses a fight, he becomes the winner's property. Her shown friends are: