Over the past four days, Mattel Packaging Designer Roy Juarez has been revealing the terrific packaging for the latest Masters of the Universe: Origins "Turtles of Grayskull" action figures (something we have also been sharing on our social media pages.) And now that the packages for the entire Wave 4 have been revealed, it is time to show them off here. Check them out: Masters of the Universe: Origins "Turtles of Grayskull" Wave 4 APRIL O'NEIL Masters of the Universe: Origins "Turtles of Grayskull" Wave 4 STEALTH NINJA LEONARDO Masters of the Universe: Origins "Turtles of Grayskull" Wave 4 HORDAK…