Talk:Bloodbending/@comment-216.183.61.122-20120927045859/@comment-1416077-20120927123421

The full moon does not "give" bloodbending; its increase in waterbending ability allows a waterbender who has mastered some of the finer aspects of waterbending (such as extracting water from living plants) to more easily perform the feats associated with bloodbending.

In theory, the same applies to perigee (when the moon is closest to Earth); everybody gets a boost, but those who know can direct that "boost" in specific directions.