"Family Ties" by Beau Smith, Mitch Byrd, and Dan Davis.
Never having read a single issue of this series, I have no idea what's going on, why Guy Gardner looks like this, etc.
But I do know that halfway through the issue, The Phantom Stranger shows up to help out with someone in a "possession coma":
...the Stranger helps Guy reach another realm of existence, but says he can only go so far. Maybe he just couldn't stop himself from laughing at how Guy looks in his Warrior costume.