I don’t directly set cookies from http://best-slayers-wallpaper.blogspot.com/, but I do run a number of scripts from providers such as Google to serve the third-party ads. All of these set web browser cookies.
Google in particular quietly collects a tremendous amount of data on your browsing habits, and http://best-slayers-wallpaper.blogspot.com/ participates in that data collection. If that bugs you, please drop me a line to let me know how you feel about this and I’ll consider removing Google’s service.