Remlig

It was January 1st, 2016. I have been holding this off because I simply deleted the world after this happened, so I thought people didn't want to hear it. I simply titled a world "Eh" and put in a random word seed without looking, but I did look at it before I made the world. It was Remlig, and it was a great seed. So I flew around in creative mode because I had cheats on, like anyone would. I found a ravine that pushed into about 3 other ravines and found diamonds plus a cave. So unlike a normal person who would ignore the cave, I went in and found a mob. It was dark for me so if I post the screenshots I'll brighten it up, but I decided to just take a screenshot of it. But just then, I noticed it had a name tag saying "Remlig." Confused, I decided to try and take it down in creative mode with a diamond sword. It doesn't seem to be taking damage, so I think it's a glitch and get diamond gear with a diamond sword. So I go to survival mode and try to take it down but the same thing happens, no damage and then the mob kills me in one hit. Yes, one hit with diamond gear. So I just delete the world and go on with my day. I haven't seen them to this day, but I have one minecraft world that I haven't touched yet. Maybe he's waiting for me, just sitting there to kill me again.