Longshot

Longshot is an extra dimensional rebel warrior created through genetic engineering. He has amazingly good luck, as well as superhuman agility. 

In the dimension known as Mojoworld, beings called the Spineless Ones ascended to rule the area. A temporal loop drove them mad. They ordered a number of humanoid slaves created to serve them. However, Arize, the slaves' creator, deemed that they should be able to fight their oppressors and gave a number of them enhanced abilities.

It was revealed that because of Mephisto's manipulation of Shatterstar by sending him back in time to the Mojoverse (along with Rictor), he was discovered and experimented on by Arize who created Longshot from his DNA, essentially becoming his father. This created a paradox when Longshot impregnated Dazzler who then gave birth to Shatterstar. Longshot and Dazzler were mindwiped to forget the pregnancy and the Shatterstar infant was sent 100 years to the future in order to maintain the consistency of the timeline. Longshot was the most notable of these 'freemen', imprinted with an imperative to seek freedom and granted with several unique abilities. The mutant heroes known as the X-Men found the amnesiac Longshot in their Danger Room and he participated with them in many adventures while trying to regain all of his memories.