Koku is a mysterious B-tier utility unit in All Star Tower Defense X, known for his shadow manipulation and stealthy movement. As a 3-star/Common rarity unit, he excels at disrupting enemy formations and applying debuffs from the shadows. His low cost makes him an ideal pick for early-to-mid wave builds with strong control potential.
Passively turns Koku invisible when not attacking, allowing him to reposition or avoid detection.
Deals bonus critical damage to enemies who are unaware of Koku's presence.
Creates a short-lived fog cloud that obscures vision and reduces enemy accuracy within its area.
Merges with the shadows, becoming untargetable while dealing continuous damage to nearby enemies over 5 seconds.