Source is https://xkcd.com/1079/
I did not create this Wallpaper, just submit it. I think it was postet on /r/dota2, where most of my dota related wallpapers are from.
You will have to ask http://www.reddit.com/user/HauntedAccount for it
all these wolfwallpapers i upload are only for you!
SGU has been closed due to a lack of viewers... really missing it...