Bleach - Lucifer's Dance
Bleach is one of the "4 Bigs" or "4 Kings of Shounen Anime", along with Naruto, One piece and Dragon Ball. These are the series that have lasted hundreds of episodes. Many of these animes' fans grew up watching 4 Bigs and even had their own kids.
This OST plays in most epic fights and it's perfect to get you in the mood!