Looks like a good start.
Most top energy builds use a lot of knock-back or dual Ash Creators, and then strong ranged stuff like Malice Beam and Valiant Sniper. You've got a good set up to start with, but eventually you want to go for a weapon setup that better coverage at different ranges.
There are two main ways for another player to beat an energy build:
1) Have enough energy that you can't drain them, or have several zero-energy weapons.
2) Exploit holes in your weapon range.
For the first, you just need to get stronger. For #2, you want to eventually get to a setup that where your range gaps can't really be exploited. For example: Bulldog/Ash Creator, Last Words/Bunker Shell and Malice Beam/Valiant Sniper.
edit lol I missed the regen... guess I just spent 10 minutes replying seriously to a troll post