I´ve used a Pack like this (in a Drop Pod) sucessfully:
Wolf Lord w. combi-melta, frost blade, termienator armour, runic charm.
Wolf Guard Bodyguard (4) w. 2 assault cannons, 1 combi-melta, 1 combi-flamer, 3 lightning claws, 1 chain fist, runic charms.
The Pack can deal with almost anything, shoot it up good on the turn they drop in. I´m about to change the ordinary Wolf Guard´s guns into combi-plasma instead though but one melta and flamer shot is flexible if you don´t know what you´ll face. And the AssCans are always nive as you know! ;DAnd I might also build a second Pack but instead of a chain fist I might take a Thunder Hammer.
Maybe, just maybe, I´ll build another character with 2 lightning claws as well, I have a few with that config in power armour and they´ve been extremely deadly!