Neutral B is a projectile that covers a large portion of the stage. It can combo depending on the charge length. It is very good at covering multiple ledge options. However, charging it at close range is very bad, as it as a lot of end lag. It can be ledge canceled however, to make it more safe.
Side B is both a safe damage option, and a stock taking move. This move can be used safely in neutral due to its far reach. It can also take stocks at ledge. Holding the B button after using the move results in a different knockback angle.
Up special is very fast. It is great out of shield and to recover.
This is the best move ZSS has. It can get you out of most bad situation, and is very fast. It can also spike offstage.