Final Crisis (2008-Variant Covers) #6

Plot

As the entire world turns against them, the last of Earth's Super Heroes must face the unstoppable power of the Gods of Apokolips for the final time. Supergirl vs. Mary Marvel! Superman vs. Darkseid! The fate of the Flash! And the incredible return of the New Gods! The End of Days has come and the ultimate war between good and evil will at last be decided on the battlefield of a broken world!

And as the skies bleed, as the walls between universes crumble and fall, the ultimate threat to life makes its presence felt as an evil beyond imagining arrives to claim its prize. Mandrakk the Dark Monitor is coming and the DC Multiverse will never be the same again!