Legion of Super-Heroes (2005) #50
an issue of Legion of Super-Heroes (2005) by DC Comics
Issue description
It's the final issue! The climactic conclusion of the Universal Annihilation War is here and every Legionnaire, every reservist and even the United Planets' Young Heroes battle to save existence. Also featuring the return of Cosmic Boy, the death of a longtime Legionaire and a gorgeous wraparound cover!