[Wrana]

Yes, Weapons of Sharpness - and also Strength of Giants. Vans have good troops and should kill giants relatively fast.
You have a number of Vanjarls and they can both raid and join into Sabbath for big battles. Sabbath master can do many interesting things - look up Baalz Guide on communions. In particularly decisive battle you can use Sabbath->Hell Power (+2 levels for master and all slaves, but Horror mark) then you can really spam many things.