My EB/Regen is now my favourite toon. I dropped Voltaic Sentinel and Short Circuit to make room for the Electric Mastery epic pool for the extra controls and team healing, but that was a play style choice. Giving up Sparky was hard. Pretty much a straight up sets build, no proc monster shenanigans. Even without Agility Core alpha I could reliably sap Paragon Protectors/Fake Nemeses to keep them from MoG/PFF. Can't remember the last time I ran out of endurance, if ever, even against multiple Dark Ring Mistresses and Malta Sappers.