All other selfish DPS jobs have a defensive skill, but Viper does not. In fact, Viper has one of the fewest number of assigned buttons to press compared to other jobs. Could SE not have included a single defensive skill?

It feels as though the Viper job was half-baked and rushed to completion. At the very least, it would be nice to give Viper a passive movement speed buff, similar to what Ninjas have, and call it a day.