The intro is a bit meta, but the concept of this game is actually pretty good.
I didn't realize there were abilities the first time I played this. I think the biggest flaw in this game is that the first round can go on forever if the RNG goes a certain way (I ended up restarting) and you never even see the abilities. It really should be scripted to go a certain way, or something. Until I read the other comments I'd kind of dismissed this game as barely even a game at all.
I do like that the game continues whether you win or lose, which makes sense given the context.
The art is really nice. I love the playing cards with magical girls on them, it's cute and charming and works perfectly for this game and this jam. The music is nice, but it did get annoying after a while, so it might be a good idea to change tracks between rounds.
I second the suggestion of having the girls' expressions change as they win or lose; that would be a cool addition.