WizKids has announced that the Marvel HeroClix Expansion, Clobberin' Time and the Mage Knight Solonavi Celestial Titan have sold out at the manufacturer level.  Distributors and retailers may still have stock on these items, but WizKids produces the HeroClix expansions and Mage Knight individual figures in limited one-time runs -- and when they are gone, they are gone.  While some recent WizKids releases such as Crimson Skies and ShadowRun have not fared as well in the marketplace, both the Marvel and DC HeroClix remain strong and the relaunched Mage Knight has also performed well.