This boxed set lets you transform your Warhammer Underworlds collection into a new kind of game. Picking your favorite hero, you'll embark on arena battles that are fast paced, fun and that'll push your Warhammer Underworlds skills to the limit!

This set includes:
- 20 all-new Gambit cards -- designed for Arena Mortis but usable in ANY of your games
- 20 all-new Upgrade cards -- also usable in ordinary games of Warhammer Underworlds
- A double-sided game board to play on, compatible with all existing Warhammer Underworlds boards
- Tokens and Cards for keeping track of the game
- Updated cards for the Restless Dead gambit and the Sepulchral Warden, reprinted for your convenience incorporating the latest rules updates