Emp's champ + Sword brethren in a LRC outflanking?
Of course you cant assault the turn they come on, but at least you wont have to pay points for frags. You could move 12, pop a tank's rear armour with the multi melta via potms, then finish off the tank with snap firing assault cannon (twin linked) or youre within rapid fire range of the hurricane bolters. Hopefully next turn youre in range of charging anything. Then on top of that you can have 2 power weapons that cant be challeneged hidden in the squad, lightning claws and an axe, both of which you can add in an extra atk 10 points a pop.
Coming in @ 605 + vow .. haha.