Dark Horse Comics/DC Comics: Mask

Grifter and the Mask team up and face off against smugglers at a Las Vegas weapons show. After destroying a planet, the Mask has a bounty on his head and Lobo hot on his tail in a mind-bending, time twisting showdown between madmen. And last, but not least, the Joker stumbles upon the mask which inspires a new super-powered reign for the Clown Prince of Crime!

This volume collects Grifter/The Mask #1-#2, Lobo vs. the Mask #1-2, and Joker/Mask #1-4.