ITS CHRISTMAS! And with the holidays come FAMILY REUNIIONS! Even on Eternia!

Adam and Adora are chilling on the couch watching anime, shooting the breeze until Adora goes "I wish we could just overpower the evil in both our universes! But everything is just too...balanced."

"If we had twice the power of Grayskull, it'd be a breeze!" Adam replies, "but its not like that would ever hap..."

*GURREN LAGANN BEGINS SHOWING*

Both Adam and Adora have an epiphany, and hot foot it out of the castle. Moments later they're in front of the Sorceress, who goes "YOU WANT TO DO WHAT!? Okay, just this once, I'll let you try it. But you DO know that nobody's ever done this before, right? RIGHT?"

Adora: "THROW LOGIC OUT AND DO THE IMPOSSIBLE!"

Adam: "WHO THE F*CK DO YOU THINK WE ARE!?"

Both: "For sake of Eternia and Etheria, and By the power of Grayskull! GATTAI DAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA~!!!!!"

Seconds later, a being steps forth that just tips the scales and flips the tables:

SHE-MAN! Adora's personality is dominant, with both He-Man's and She-Ra's speed feats stacked. Strength feats are composited. She-Man gets a flying mount, and use of both powerswords which can be either dual-wielded or combined.

HE-RA! Adam's personality is dominant, with both He-Man's and She-Ra's strength feats stacked. Speed feats are composited. He-Ra gets a ground-baded mount, and use of both powerswords which can be either dual-wielded or combined.

They can switch between She-Man and He-Ra at will, but there is a 3-minute cooldown before they can switch again. When they switch, any damage the previous form takes, is reduced by 2/3.

Their magical "reservior" is doubled, and they can draw on and withstand TWICE what either He-Man or She-Ra could while channelling Greyskyll's energies.

In either mode, the dominant personality has access to the memories, knowledge and experience of both twins.

Who, or what in the MOTU universe, including the new MOTU:R universe, can stop He-Ra/She-Man? Hell, what would it take to stop He-Ra/She-Man, and who/what could even do it?