Nope actually he isn't. In He-Man/Thundercats crossover Skeletor defeated Mumm-Ra in their 1st encounter.Powerful magic can harm Mumm-Ra.

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Skeletor colors, by sobreiro: https://t.co/DaLNTkEOaU

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First pass at Skeletor from Masters of the Universe.

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very own ☠️
"I AM NOT NICE."
Thought instead of posting updates for this one I'd let it be a nice little surprise 😀

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Draw Skeletor from He-man in 1 hour 23 mins

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