Arenas

Summary

 * Arenas are unique battlegrounds that are unlocked as you increase your trophy count.
 * Each arena will unlock new card rewards.
 * Some Arenas are based around the cards they unlock, such as the:
 * Goblin Stadium which unlocks 3 cards based on the Goblin.
 * Bone Pit which unlocks 3 cards based on the Skeleton.
 * Arena 1 (Goblin Stadium) unlocks the Shop and TV Royale.
 * You receive more cards through silver chests with a higher arena level.
 * There are many different trainers in the training camp including: