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 superpowered 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. 

* Collects never-before-reprinted material.