Giant black spider, resembling a real tarantula, with the ability to spit acid

Giant black spider, resembling a real tarantula, with the ability to spit acid, He faces a man of about 30 years old, He carries a long sword and futuristic armor., but worn out. They both meet on a floor of a futuristic building, Outside I could only see floating islands with other buildings on top of them., it's raining.