By the power of Grayskull (and with a little help from our friends at Mattel), He-Man has come to save #IDARB from Skeletor with new arenas, teams, halftime events, hashbombs and more! You’ll have the power when you grab the power sword on the Castle Grayskull map, but beware Skeletor’s lava trap in the Snake Mountain arena! Halftime in Eternia calls for kart racing and Orko's mind-bendingly maddening math challenge.. It’s not just math, it’s He-Math!