The one-of-a-kind Warhammer meets American football game, Blood Bowl 2 has a brand new expansion team, The Undead that you can start playing as immediately. The Undead feature an intimidating new ability, "Regenerate" which can make them one of the toughest teams to beat in the entire game. Not bad for an expansion team. The Undead is the fourth team to join the game via post-launch DLC joining the Lizardmen, Wolves, and Norse races.
Here's the official description for the Undead Team per an official Press Release:
"Death comes often for Blood Bowl players, and the souls of the most passionate sometimes rise up again to relive the scenes of their former glory. The Undead team, raised by the Liche-lords of the Old World, have the unique skill "Regenerate" which makes them incredibly difficult to kill. They have incredibly agile players, the Ghouls and the Wights, but they are often too fast for their shambling, but fearsome, Mummy teammates to keep up.Finally, two Star Players are joining the Undead: Ramtut III is a mighty and powerful mummy who has spent countless years on the pitch. Morg n' Thorg, someone who has faced Ramtut on the pitch and lived, happens to be his sworn nemesis. Count Luthor Von Drakenborg the vampire carries impressive stats and the Hypnotic Gaze ability, and is one of our most fearsome Star Players yet!"
Blood Bowl 2 isn't done adding teams yet as the Necromantic and Nurgle franchises will be joining the league sometime in the near future.