Challenges in Brave Cross can refer to the following:
Arena Challenges Edit
That can be issued between players in the Arena. Each player has a maximum number of 5 challenges that can be used to gain better ranks in the Arena for better rewards.
Daily Challenges Edit
Quests that all players can complete in order to earn rewards such as Gems, Legion Coins, Personal Contribution tokens, Gold, and Lord EXP.
Campaign Challenges Edit
Instance challenges that allow a player to challenge NPCs and sub-plots in the lore for rewards such as Gems, Random Hero packs, WarSoul Elixirs and Grade Elixirs.