Updated version of: https://bl3zone.com/build/2221/fl4k/fl4k-gamma-burst-max-v2-for-lv-65
After playing with the build I have a more solid foundation. The idea is to maximize damage when using Gamma Burst.
What you need; Shield: Radiation Old God with ASE of Radiation/Cryo. Grenade: I prefer Power Siphon Tran-fusion for the just in case heals, but you can use anything else. ASE of whatever you didn't get with the shield. CoM: Red Fang for aggro relief. Must have 1 point in the skill "He Bites!". Reason being is that it helps stack the skill "Frenzy". Artifact: Pearl of Ineffable Knowledge Guns: Any meta gun with Consecutive Hits or Gamma Burst anoint.