The Brawny Battleaxe is an exclusive decoration in Clash of Clans obtained during the Clan Rush event. To get it, a player's clan must collect 5,000 Star Ingots by earning stars in battles during the event. Players must contribute at least one star while in the clan to claim the decoration. The event features a limited-time building where clan members work together to forge the axe, and the rewards are tied to participation in a specific clan.