Havik and Logan

Havik (Left) and Logan (Right) are mortal enemies. But on occasion, are known for simillar goals and ideas.

With them being diffrent sides of a religion (Havik a Demon, Logan an Archangel) They constantly fight.

During development, Havik was meant to be a replacment for blaze, but when the idea of Anti-X was trashed, he replaced the main Antagonist.

In the Movie
In the Archangel movie, Logan and Havik team up against a Intergalactic image of Satan, their powers combined, they managed to just barely stop him from destroying the earth.