He-Man/ThunderCats could destroy them both. He-Man fires his power into the Sword of Omens as together he and Lion-O summon the Power Beyond Power at Mummator. The resulting blast of energy overwhelms Mummator and blasts him apart into Skeletor and Mumm-Ra before disintegrating both beings. The resulting blast transforms He-Man back into Adam but seals the orb and both the Sorceress and Jaga claim victory for the heroes. Lion-O looks and sees a portal back to Thundara and is desperate to return and save his father and his world saying he won’t run away again. Adam gently holds his friend back
He-Man within Castle Grayskull. In the Episode of the original series "Eternal Darkness", He-Man was shown pushing a moon of Eternia into a specific orbit, and then later returning it to its original position by hand. He can remain as He-Man for as long as he wants but if he takes too much damage or uses too much raw force, he will revert to his original form of Adam. In the 2002 series, He-Man is shown enduring the brunt of at least two large explosions, which he survives, but reverts to Adam in the process, suggesting that even He-Man has a