Akeldama is one of three Sephtis, (the singular version of Sephtis is just Sephtis) the other two being Achlys and Atius. All Sephtis appear as a large dragon made of oil with glowing eyes. All of them are linked to an amulet, and when you acquire that amulet, they won't leave you alone until you go insane. (They're OP, as you can see, which is why I never roleplay as a Sephtis, I just draw them :P)