Bulwark: The Winter of Death

From publisher description:

More Heroic Co-operative Deck-Building!

So, you've faced down goblins and fire lizards at Fort Briggs and think you're pretty tough? Well, try the Winter of Death on for size. More cards, more options, more opportunities to take a thrashing from a card game.

This expansion rounds out the basic Bulwark set with the following:

A new hero - Wiola Wildborne, the huntress.

2 new enemy armies to face - the Fallen Elf's Vengeance and the Winter of Death

3 new locations to defend - the Citadel of Xajorkith, the Sylvan Heights and the town of Holtvaros.

The starter set of Bulwark is split into two products - this expansion and the base set.