I don't know about you guys, but arc blade is one of the more underpowered supers. Sure it's fine if you are in close quarters and other players can't escape, by most of the time this isn't the case. Players can easily jump back and shoot you. That's why I think activating arc blade should also give you a shield that triples your defense. This will actually make Arc Blade an effective super instead of a joke.
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you should also be able to throw your blade at enemies. that way you won't have to run at them at a super high speed with a blink and a very long melee range to kill them!