Obelisk's Dark Samurai depicts a samurai warrior wearing an intricately embroidered kimono, with the upper body resembling Obelisk the Tormentor, featuring hardened veins and a somber expression. The warrior has a man bun and is wielding a sword, with a bloody cloth wrapped around the sword's hilt. There's blood on the warrior's face, and the artwork shows detailed cloth folds, face, and hair. The background of the card features a dark forest scene, adding a natural and mysterious ambiance. The artwork is depicted from a side view and is designed in a photorealistic painting style, capturing every intricate detail of the character and the environment.