Selector Infected WIXOSS, Mahou Shoujo Site Recommendations
In both anime protagonists are girls.
In Mahour shoujo site: Unfortunate girls get magical powers to use at their will
In Wixoss: Unfortunate girls get dragged into card games which are meant to fulfill their wish.
In both anime girls at risk of losing everything by participating in magic/card games.
Girls in both anime are unfortunate.