Jackal

Jackal is an Etherious and a member of the Nine Demon Gates of the dark guild Tartaros. Jackal has brown hair and black eyes in the manga, in the anime he has yellow eyes. Jackal is a sadistic and cruel character who loves to entertain himself with human suffering. Jackal first appears as the one who killed the entire Magic Council, only leaving Doranbolt as survivor. When Fairy Tail finds out that Tartaros is also after previous council members, he runs into Natsu Dragneel and the two of them engage in battle. Here he shows them that the members of Tartaros do not use magic, but instead use curses. His curse is called the Bomb Curse, which allows him to blow up whatever he touches or whatever gets trapped into his markers. Eventually, Jackal is defeated by Lucy using Urano Metria.