The most unpredictable of all four-element-dragons. He is the lord of quantum mechanics; its body is pure energy, so he can control all the matter surrounding him. Don't get too close, he's radioactive!
Statistics + Information
Full guide on how to breed a Promethium Dragon is coming soon!
All of the dragons listed below can be used to counter the Promethium dragon in fights, since all of them deal Critical (super effective) 2X damage against the Promethium dragon, but the Promethium dragon does not deal critical damage to any of these.