The plasma cannon is a weapon, that fires a continuous beam of plasma (with this, it can be sustained by the weapon, while it's fired) which is confined by a helical magnetic field. It's usually used as a cannon (hence its name), but with a sufficient battery technology, it could theoretically be used as a handheld weapon.
And it has a great tactic against magnetic fields, that is demonstrated in the following situation:
- A challenger appears with a powerful magnetic field.
- The cannon detects the magnetic field and creates an electromagnetic field that attracts it.
- When, everything is arranged in the way it should be, the plasma cannon fires, at this point the other magnetic field not only doesn't deflect the plasma, but guides it into the magnet.
The challenger will probably get's the answer to his question in hell.
- What are the flaws of this concept? (I'm pretty sure that it has a ton of them)
- Is it possible to flip the pole of the other magnet?
Things to consider
- Let's just assume that the energy requirements can be handwaved.