The Fighting pools buff Brawl I think, so why not go WoW auto-attack style and just turn on auto-brawl for when you're in melee range? Punch and Kick from the fighting pool also drain endurance, if you want to feel like you're contributing to an all Elec end-drain team, and Cross Punch is just fun and makes you feel like you have a Street Justice mastermind.
I really enjoy my Demon/Rad MM and his flame whip attacks. Even if their DPS is the suck, they give out -9% damage resist, which is like half of Enervating Field, so that might scratch your itch to have a scrapping/blapping mastermind.