Bone Pit is the second Arena to be unlocked in Clash Royale. You need at least 400 trophies in order to play in this arena. As it name states it focus on Skeleton cards so you unlock a lot of cards related to Skeletons in Clash Royale (Skeletons, Tombstone, Giant Skeleton, Bomb Tower and Balloon) as soon as you unlock this arena. The Bone Pit comes after the Goblin Stadium and before the Barbarian Bowl.
Bone Pit Cards