[(dark gloomy background, red glint:1.3) ::5], (terrific:1.2), (masterwork:1.1), BREAK (a demonic evil katana, floating in air), [sinister aura: blood-red aura: 0.60], (ominous presence), [malevolent: sinister: 0.70], (murky shadows), (ominous atmosphere:1.1),fantasy00d,non-humanoid robot,huoshen,High detailed ,yoimiyadef,cloudstick,Color magic,weapon