Mist is dangerous because of it`s corrosive characteristics, but other than that it can be harmless should this characteristic not be in effect. It`s power, as stated, is to create a large quantity of mist. This can be harmless or corrosive. It`s form is the mist itself.
Mist appears in Episode 14 while Tori is performing in a Cinderella play. It corrodes the pillar, nearly causing him and a fellow actor to topple down toward the stage. Sakura and Li reacted quickly, using the Shadow Card to trap all of the mist into one source so it could be sealed. When summoned, the same mist can be harnessed.
