(Yes I re-uploaded, I hated the shading)
A continuation of this [link]
for Luna helping Trixie.
This is pure headcanon. I've been rolling in spoilers lately, and from what I gather Sombra might be controlling Trixie in her upcoming episode, based on that ruby necklace swag. And since I also, based on no evidence or logic, ship Luna and Sombra, the image of her defending another of his victims came to mind.
Battle rage Luna!