I remember seeing this anime trailer for a light novel.

There was a girl with short pink hair? Awesome combat scenes...?

It looked really SHAFTY with the colors and stuff I think.

But I know for sure that it wasn't animated by SHAFT.

It's a light novel, and it doesn't have an anime. It got a really epic trailer and I feel like watching it again...

Thanks in advance?

The only one I can think of is Kyoukai no Kanata, but I'm unsure if it is it.

http://www.crunchyroll.com/anime-news/2012/05/21-1/video-kyoani-produces-animated-promo-for-kyoukai-no-kanata-light-novel

What I like in Trivial Pursuit style. Pick your category:[img]http://i379.photobucket.com/albums/oo233/Reid4891/Manga/trivia-1.jpg[/img]

Hidan no Aria? https://www.youtube.com/watch?v=GaR54uvQwXQ&feature=youtube_gdata_player

Yes, it's Kyoukai no Kanata! Thank you!