In The Hall of the Mountain King Champions

The noble effort to reclaim the mountain attracts heroes of trolldom. Each player gains a legendary troll champion which grants powerful benefits!

(First available in the Deluxe Edition of the game for FREE, and later sold separately by the publisher.)

Each game, 1 champion will remain undrafted. This champion will gain 1 item to become more enticing next time. When you draft a champion, you get all of the items it has accumulated while "sitting on the bench".

From the rule card Champions can be used in Competitive play, Team play, and are compatible with Co-op and Solo play.