Skill customization for characters

Not enough? Ok, I'll explain it more briefly:

How about choosing different skills to use before you spawn

Like the zerk instead of knocking people over with the whirlwind, he could go into a temporary buff mode, increasing his dmg by 2x with all of his attacks, but moves a little bit slower than usual.

The reason why I think we should add this is because in the future, we're likely gonna have ALOT of classes. So using different skills will not only make your character unique somewhat from the rest without cosmetic items, but it will also give more variety to your tactics.