I honestly think that the weapons need new types, especially guns.
I have ideas for guns and a melee weapon, and maybe a bomb later on.

Rifles: shoot 1 shot before reloading. Medium length reload. Shot deals heavy damage, and travels relatively fast. Has knock back. The bullet or laser it fires also goes much farther than other projectiles, able to hit targets a bit beyond the screen. The charge attack has the user fire a continuous beam, similar to the Seraphinx's attack.

Ion cannon: this could be a gun or bomb. Essentially a crowd control weapon. Fires a single shell before reloading, which explodes with less force than a bomb on impact, or after some time. Same range as a blaster. Charge attack make the knight leap up and fire 3 more powerful, wider blasts at the ground, dealing damage to any nearby enemies.

Scythes: 2 swings, but faster than heavy weapons like the troika, while slower than normal swords like the brandish. Charge attack sends the knight dashing forward, slashing the scythe before them, moving about...4-8 blocks?(assuming a block is a space about the size of a knight)

(More to be added. I think I posted these before....)