Have an idea building on the monowhip.
Basic premise requires a special body suit that maintains a rotating electromagnetic field that suspends a couple of Monofiliment rings, not unlike hula hoops, sort of like
the rings used to hold Zod in the original superman though I would weld on a third ring to cover the head level a bit better as well as rotating much faster so as to provide an effective defense that slices anything crossing its borders.
The Field is actually repelling the hoops, but as it is evenly pushing in 360 degrees the rings will not come into contact with the suit wearer's body while powered up, there is a formula for repulsion like those used in some of the particle accelerators and plans for containing antimatter via EM rupulsion showing the rapidly increased levels of force required to even try to move them closer. Suffice it to say that it wont bounce back up on you easily.
With a high enough rotation it can provide effective defense against melee and even some limited protection from certain ranged attacks, slicing bullets up in the air, though obviously not aoe attacks. You have to keep your arms inside the field, (the rotation is centered around the torso section). I would probably set the rings diameter to around a 1.5 meter as default to allow a safe personal space and not take off one own's hand or weapon by accident. May be able to figure out a way to make the rings expandable/contractable to allow one to adjust down so as to be able to go through doorways without shredding the doorjamb, but this one is primarily designed for outdoor use. Normal parries and blocks are pretty ineffective against this as they will just end with chewed up armor (if lucky) or missing weapon & body bits. The attacker can not even really get within the field unless the field speed was set stupidly slow as they would literally be sliced into thin wafers in the attempt.
Against sufficiently hard or hardened armors where the hoops can not penetrate it will still act as a defensive barrier as they are rotating at such high speed as to make an effective 'bubble' about the target and normal metahuman reflexes are unlikely to be able to slip through the gaps before being buffeted aside by the returning ring. Still hammering out details on how much damage the hoops can take if attacked this way...
The system can connect via a cable with a smartgun as well, timing the firing to slip 'between' the rotations, not unlike when a ship fires through the 'stutters' of a force field. So you pull the trigger, but the system actually syncs up, deteriming gun position, muzzle velocity and more and takes the shot within those split seconds to let the bullet through. You would be hard pressed to even notice the tiny delay from the time the trigger is pulled.
Needless to say you can not go and pick things up while this is powered up, unless you just wanted to make a salad and have someone toss you some veggies-it slices and dices!
Power consumption is a pain, usefulness indoors for stealth runs is questionable as your leaving a swath of destruction, but if you want to wade through a close quarter battle literally in a cloud of blood and flying bits, this is the suit for you.