Pre-Renewal skill builds (PvE)

I change my character skill builds. Here are they:

Blade Master
Reckless Fist
Mastermind

Q&A:
Q: can u give me some reason why you don't use RD and DE?? and why you pick particle accelerator and pulse gatling?
A: DE isn't really effective in PvE and RD is optional. Pulse gatling is cheap, Starfall isn't effective against single target (boss). Particle Accelerator + noted Panzer Buster are the fastest way to reset Dynamo Mutation Points.