Megdum
Rock slime?
F͍̣̳̼͓̫̦̟̳̘͎҉̸́L͇͈̃̉͊̒ͩͪ̓̅͒...
Just my interpretation on the slime as a ghoul/monster/whatever you call it and made it black and put rocks on it, innovative I know. But seriously I was reallly flattered