My hero, The Uncertainty, was a challenge build I created on Live and have since recreated here. The base is an MA/SR scrap but I only took the first 2 defense toggles plus Storm Kick. Once Power Pools unlocked at L4 that's all he takes, baby!
At L22 I have the complete Jumping set, the 3 attacks from the Fighting pool, Flurry from Speed and Concealment. His attack chain is all low dam and fast recharge but I go through end so fast because of the toggles and the time it takes to drop enemies.
He is tedious to play even though he doesn't drop very often at all. The one plus is how comical he looks in combat. The animation change from Jump Kick to Storm Kick is especially chuckleworthy😄.