Dark Ink

Dark Ink is a black, inky substance only obtained from The Ink Machine.

Side Effects
If you were to get drenched in Dark Ink, it will, albeit extremely painful, kill you is mere seconds. It is possible for someone to survive it, but the results aren't pretty. It can corrupt the person's body, mind, and the very soul. In other words, it can make you evil and it is virtually impossible to reverse those effects.