Pretty much, an albino Unicorn. But 100% blacker. A very magestical creature and is rarest among all of the animal kingdom.
First recorded sight of a Blackicorn: 7/4/2011, on a boat somewhere in St. Louis, Missouri.
No Blackicorn has been captured on film yet, and if they do, scientists predict that it will only show up in the light, as it would blend in the shadows.
Holy nipples! I just saw a fucking BLACKICORN!