The Girl of Steel (in a blue bodystocking that only lasted an issue or two, fortunately) takes her lumps on an alien planet, where in a bid to help some brave rebles, she enters a gladiatorial contest against a huge woman who almost cruahes her to death, and when that doesn't work, the evil tyrant uses a megaweapon on ...
This image was on the author's DA for a while, he removed because he said it was too similar to a scene on a Supergirl comic. Bad girl name is Daray, a vampire.
Source: DA
Tomorrow Girl is a literal clone of the Silver Age Supergirl. Here's she's been held by a magician with both her 'kriptonite' and magic.
Source: NHS 78
Supergirl gets defeated by magicical beings. Don't worry, she recovers, and gets a new costume in the bargain..any info on the orginal publication info would be appreciated! Thanks
Source: blog
Supergirl is returning Bizzarogirl back to her planet. Kara doesn't think that the sleeping gas will work on her, opps. I like the little part where Supergirl comments on the gas and is already falling under its effects.
In Wonder Woman, Volume 1, Issue #177 (DC, August 1968), the alien ruler "Klamos the Mighty" deicides to pit various females from across the universe in a battle to the death -- the winner will become his queen! He captures two superheroines from Earth: Wonder Woman and Supergirl. His underlings come across Supergirl a...
From Suicidedidart at deviantART. Supergirl (in JLU costume) is captured by the Emerald Empress and her Emerald Eye which is using a Kryptonite beam to keep Kara weak and bound.
Source: http://suicidedidart.deviantart.com/art/Super-Girl-and-The-Eye-162118008
An unbelievable disappointing scene in issue 35. Some Supergirl lookalike flies around and fights some robots who ram her into the ground. There is only a small arm carry and follow up scene.