ookami_no_haka_ken, weapon, greatsword, black_and_red_claymore, glowing_red_core, crimson_gem, intricate_crossguard, glowing_red_lines_on_the_blade, silver_edge, metallic_texture, sharp_edges, demon_cross_hilt, ornate_crossguard, black_metal, angular_design, fantasy_weapon, anime_weapon, energy_veins, gothic_design, demonic_motif