It weighs 50lb (22.6kg) and has a bulk weight consisting of high-density, heavy metal beads. It’s what Supercell, the makers of real-time multiplayer mobile game Clash Royale, believes is “quite possibly” the world’s heaviest phone case. For the case’s first playtest, Clash Royale teamed up with legendary strongman and internet personality Eddie Hall. Both Hall and fans alike struggled to get to grips with the device as they played the game on the eve of UFC 306 in Las Vegas, where game developer Supercell promoted its titanic in-game event at Sphere.