Suggested by Sonic Skeletor got a massive power boost in the recent (Well it feels recent but I guess it’s fairly old at this point) crossover with the Justice League. He has always been a solid threat when fighting He Man as well though, but I would still give Mongul the edge. While Skeletor has the edge in energy manipulation, Mongul’s physical power and durability can’t be beat. Skeletor will have a hard time dealing any real damage to him. Mongul wins.