It says it's the only hiden jutsu with a rank in the databook. While I understand that refers to the third databook, it's somewhat ambiguous. It can be understood as there being other hiden jutsu with ranks given in other databooks, or hiden jutsu with ranks given elsewhere. Omnibender - Talk - Contributions 23:23, March 31, 2010 (UTC)
- From what I understand it's saying that in the current three databooks it is the only hiden jutsu that has been given a letter rank while all others have not. This would included all other official sources. This though has me questioning if it really is a hiden jutsu.
¥Super Novice ↔ Talk 2 Me ¥23:26, March 31, 2010 (UTC)