The Corrupted Focus is a small, triangular device with a slightly curved surface, resembling a piece of advanced technology that has been tainted by an unknown force. Its edges are sharp and angular, with a central glowing core that pulses a sickly purple hue, indicating its corrupted state. The surface is a mix of smooth metal and rough, irregular patches where the corruption has taken hold, giving it a battle-damaged and weathered appearance. The device is adorned with intricate circuitry patterns that are partially obscured by the corruption, adding to its ominous aesthetic.