X-Men Legacy - Legion v01 - Prodigal (2013)

Collects X-Men Legacy (2012-2014) #1-6.
Legion, the most powerful and unstable mutant in the world, and son to Professor Charles Xavier, has killed gods and reshaped the face of the universe. NOW! in the aftermath of Avengers vs. X-Men, Legion will finally attempt to conquer his demons...and embrace his father's legacy!