http://www.toplessrobot.com/2010/03/the_10_most_impossible_feats_of_he-man.php
That was posted by Parmaniac over in the Vs. forum. A few of the feats are already contained in this thread, but many aren't. There's only 10 of them, and some are from TV (which is considered canon for He-Man), but they're among his best feats ever.
He pushed a moon? I didn't know that. I guess animated He-Man rivals Movie Superman in Strength then. Throwing Castle Grayskull is also impressive.
Another thing he does (though not directly from his own power) is teleport. The sorceress has teleported him out of danger to Castle Grayskull in the evil seed episode.
Then from there she can open a portal to anywhere he needs to go (and back).
He-Man has Super Breath:
http://www.youtube.com/watch?v=lDt_3KkMIXc&feature=related
Jump to 6:10
He also has super speed (just rarely shows it for some strange reason)..
We've already seen he can rub his hands over sand so fast that it turns into glass, and that he can whirl his sword around fast enough to create a small hurricane, throw mutiple punches real fast, plus deflect countless numbers of lasers simultaneously.
Well he can also run at super speeds! Here he runs round pushing a heavy guard rail fast enough to counter a big powerful whirlpool ( which was threatening to destroy a whole city under the sea):
http://www.youtube.com/watch?v=UHarj9tGgxk&NR=1&feature=fvwp
It happens from 8:00 to 9:00.. Takes him a bit of time to accelerate presumably because he's pushing the heavy rail.
Another instance of He-Man running at super speeds @2:55
http://www.youtube.com/watch?v=O3JHkxebXDU&NR=1
Interestingly enough at 7:10 his Sword absorbs power from the sun. So seems his Sword can abosorb/redirect all sorts of energy.
He also shows his Super-Breath again 7:17
