Classes with great base movement or movement abilities. Rushers are usually focused on burst damage and being able to kill enemies quickly.
Weaknesses of Rusher Classes
Rusher Classes have great movement, but their good evasion has some kind of restriction. In addition, most rusher classes lack range, so it is best to stay at a distance away from them. Rushers lack reliable stuns or staggers to bring their enemies down, and they are usually very weak in defending themselves.