I like gunning as much as the next guy, but this gun in particular has been such an annoyance in parties. To summarize:
*It has a rather fast attack speed so you can keep spamming shots
* The shots do an incredible knockback. One or two people with the polaris can keep enemies pushed to one edge of the map. Unfortunately this means that it can push a lot of enemies out of the way of fighters. For other gunners in the party this makes it harder to aim because enemies are being knocked out of the way.
* The visuals are blinding and obscure the enemies a lot. When enemies are being pushed into one area the swordsmen and bombers have no choice but to fight up close in the area the enemies are being knocked back to. That means they have to fight within these visuals that make it harder to see, and and obscure an entire knight. At least consider a visual nerf.
* This of course means a lot of enemies can be knocked into a knight while in the middle of an attack which can cause that knight to get damaged.
There should at least be a nerf to the explosions, the attack speed, or a change to how the weapon deals damage. The catalyzer for example deals similar explosions but requires a charged attack so the explosions don't cover the screen as much and is restricted to one enemy instead of a certain area. The catalyzer series, however, could use a larger bullet for the charge attack because it seems hard to aim the explosive bullets at an enemy.
Anyways, that's my two cents. I've seen guns get nerfed for less than what this gun series has.
I agree that the gun could use a nerf, maybe a lil less knockback and slower fire rate, but i chose supernova.. im mainly a bomber and i only use it as an emergency sidearm for getting a safe distance from enemies. i wouldnt want anything to hurt this ability, but a visual nerf would be so nice