[3.6] Champion Crit Claw Reave / Double Strike (cheap / SSF)

Hello again

Can someone be as kind to check my Pob link and tell me if i am an outrageous filthy noob casual ?
My main concern being that my dps is low, i dont even have an ex, and upgrades cost 2-3ex for minor upgrades , like 5% more dmg

https://pastebin.com/5Dbn3XrP