You are now a participant in the Holy Grail War. The Servant you summon is the protagonist (or antagonist) of the last anime you watched/finished. What class is he/she, and how -blam!-ed are you? I'd summon the [url=http://cdn.myanimelist.net/images/characters/9/102102.jpg]Count of Monte Cristo[/url], from Gankutsuou. Assuming normal rules don't go into play he would probably be an Assassin, though he might be able to be classified as a Saber (or Rider, if his mecha counts). We'd wreck some shit up.