Technically, No, Orion wasn't a real enemy of Artemis. Her twin brother, Apollo, tricked her into killing Orion out of jealousy.
Apollo told Artemis that an evil man had Raped one of her priestesses, Opos.
Artemis tracked down the man who was swimming across the ocean, fleeing from a scorpion sent by Apollo. She swiftly loaded an arrow and shot down her friend.
Later, Artemis went to seek for Opos, she found her unharmed and quite alright. Knowing the truth, Artemis took up Orion's corpse, with his soul already in the Asphodel Fields. She sent up his body to the stars as a tribute to the friendship they once shared.
She also killed the scorpion and sent it up into the sky, behind Orion. As a reminder to all of those warning everyone under heaven of the treachery of those who are false to their lovers and false to themselves.
Artemis did not heal him, he became the Orion (the Hunter) constellation.
Apollo, in one account of the myth of Orion and Artemis, apparently used Artemis to kill Orion unknowing.
In Greek mythology, Orion and Artemis met when Orion tried to pursue her romantically. Some stories suggest that Artemis eventually grew fond of Orion, but he was eventually killed, either by a scorpion sent by Gaia or by Artemis herself, depending on the version of the myth.
Some stories say Orion was a hunting companion of Artemis, and she admired his skill and loved him, others say that he was a great hunter and sought out Artemis and tried to rape her - and still others say that they were hunting companions and he boasted that there was not a beast on earth he could not kill, and Gaia took offense of this. In the end Orion dies, there are a few doubts to who killed him and why, however. Slain by Artemis in wrath, is the most commonly known. Orion slain by Gaia, turned into a constellation by Artemis. Orion slain through a trick of Apollon, turned into a constellation by Artemis.
There is no clear answer in Greek mythology because of differing views and changes to the myth over time. Such as; Orion is slain by Artemis in wrath (for attempted rape). Orion slain by Gaia (for boasting to kill any animal on earth), turned into a constellation by Artemis. Orion slain through a trick of Apollon (because Artemis loved Orion), turned into a constellation by Artemis.
In myths where Artemis kills Orion through a trick of Apollo, it is because Apollo took the news of Artemis intending to marry Orion badly and she did not heed him when he tried to persuade her not to marry Orion. That is only one version of Orion's death.
Her brother Apollo was angered by their friendship. Apollo challenged Artemis to an archery competition. He told her to shoot a target from far away. Artemis had no idea that the target her brother mentioned was the head of Orion. Artemis' shot was perfect (like always) so Orion died. Another version on how Orion died was that Apollo sent a scorpion to sting Orion in his heal. Gaea, Mother Earth, could of sent the scorpion instead of Apollo because she was upset that Orion was killing all of the wild beasts that lived on her. Yet another version on how Orion died: Orion tried to rape Artemis or one of her virgin followers. Being a virgin goddess, she killed him before he could.
Artemis put him among the stars; or asked Zeus to do it, which he did.
Apollo was jealous, or feared that Artemis loved Orion and would marry him.
In some versions of the myth, Artemis mistakenly killed Orion because he was pursuing her and she wanted to protect herself. In other versions, Apollo tricked her into shooting Orion, leading to his death. Ultimately, the reason for Orion's death varies depending on the version of the myth.
i think it was Artemis
Minerva or Athena, Artemis, Venus, Echo, and the Mother of Hercules. The mother of Hercules was an enemy because Zeus was fooling around with her and Hera got mad. So, she killed her and tryed to kill Hercules to .