Arcane Journal: Warriors of Chaos.

From the frozen wastes in the north come the Warriors of Chaos, sacking and pillaging the lands of the Empire and claiming glory for the Ruinous Powers. This 48-page supplement provides rules for you to expand your army beyond the list found in the Ravening Hordes book, with new rules, background lore, and scenarios. 

Two armies of infamy – Wolves of the Sea and Heralds of Darkness – make their way south alongside characters like Frydaal the Chainmaker and Galrauch, the Great Drake. Extra units give prospective warlords plenty of new options when amassing their hordes, while new magic items allow you to festoon your heroes with powerful gifts.