Fate/Stay Night, one damn good anime, one of my top anime in my list to recommend to people. Watched, fell in love, and wanted more ((kinda like SSBBRAWLIN and Sekirei)(Which was awesome as well). Involving fighting, gore, super powers, and it is all to win the game...(Crap,, I just lost...lol).
Putting people, and their partners (Servants) against each other in epic battles of the extreme proportions, to win the Holy Grail War and to obtain the Holy Grail, said to grant the users wish.
This anime was EPIC, and I recommend you watch it if you like: Action, Adventure, Drama, Fantasy, Romance, Shounen,and Supernatural anime genres.
Anime review here:
Fate/Stay Night anime review - MyAnimeList