I think it's Nocturne, the daughter of Nightcrawler and the Scarlet Witch from an alternate reality. She' a member of the Exiles.They're X-men from different realities that save worlds that are in danger. The Age of Apocalypse version of Blink is also a member. This a picture of her. http://danbooru.me/post/show/250987/blink_-x-men-elbow_gloves-gloves-inugami_mokekiyo-