Trinity of Sin: The Phantom Stranger (Renaissance), book 3: The Crack in Creation
J. M. DeMatteis, Len Wein, Dan DiDio et Collectif2015

Can History's greatest villain defeat the universe's greatest evil ?

The Phantom Stranger: immortal, nearly all-powerful, and yet the one thing he wants is beyond his reach. He stormed Heaven itself to try to rescue the family he loved, but instead he returned with teenager Chris Esperanza, an innocent who had been killed during the crossfire between the Stranger and the infernal Sin Eater.

But all of this was according to a plan. Chris returned from the hereafter with mysterious powers...powers that he finds turn agains humanity when he's possessed by Blight, the incarnation of all of mankind's evil. And the Stranger-the on being who could save Chris-is commanded to help Blight instead.

But the Stranger is through being commanded and manipulated. With the help of his allies John Constantine, Swamp Thing and Pandora, he's on a mission to defeat evil itself...even if it destroys him in the process.
(Collects TRINITY OF SIN: PHANTOM STRANGER #12-22 and Trinity of Sin: Phantom Stranger Futures End #1)