The earlier post was a little confusing to some people...I'll edit it anyways since my earlier post wasn't fair to another weapon.
The edge line weapons Hot and Static edge could use a 5* class. Static being the only shock type sword is the only element that didn't get a 5* Fire ice poison and shadow all have their respective 5* in the brandish and cutter line.
The following suggestions are names for the line and yeah the names could use some work as i know someone will post negatives thoughts of em.
I also thought it'd be cool to have an ice type edge.
Hot Edge
Searing edge
blazing edge
volcanic edge
Inferno
Static edge
shocking edge
thunder edge
thunderbolt edge
kirin
cold edge
freezing edge
frost edge
frostbite edge
Ice Age
also a Vial that causes confuse or blind can come in handy in arenas where there are too many annoying enemies like mecha knights volttrode and gun puppies.
incorrect
http://wiki.spiralknights.com/Searing_Edge
http://wiki.spiralknights.com/Cautery_Sword