5826 99f42c473afe0eb4bd047ae133b851fc

Basic diagram showing the flow of events leading to formation of moon (not comprehensive)

Powers and Stats 

Tier: Low 5-B, possibly higher

Name: Theia Impact or the Giant Impact Hypothesis

Origin: Real Life

Type: A possible event in the past (Collision of Earth with a smaller planet)

Powers and abilities: It was a possible event, and if occurred, it explains the origin of the moon. It would have been so massive that it's debris got flung in a direction away from the earth, which eventually formed the moon. It also likely damaged most of the hemisphere which it impact and destroyed the small planet that collided with earth.

Attack Potency: Small Planet level (Powerful enough to launch debris outwards which then formed the moon), possibly higher (Might have completely destroyed an entire hemisphere and the planet which collided earth)