Full support. The underutilised weapon types not already included in the Lunar Pillars that you included here are incredible, and who doesnt love a motherfing dubstep cannon? Plus, those sprites make my mouth water
I am a huge fan of the Fist of Helios, as the Arkhalis is my fav weapon, but the buff and the spear seem a little to OP, maybe lower it to 2 spears and decrease the buff to 25%? The Dubstep Cannon also seems kinda strong, maybe increase the charge time by 1.5 seconds? All in all really cool idea.
I wonder if it would be an option to put one's own custom dubstep into the dubstep cannon- so you could play your own beats during battle or something. Very cool idea, I love it! (The Sniper thing should do less damage but pierce tho)