User:Toph bai fong
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Bloodbending is present in the series avatar the last airbender. It is a form of waterbending which was invented by Hama who taught this bending to Katara forcely. She used bloodbending for bad things. When Katara learned this, she said not to ever use it although she used it in a few fights like when she went in the search of her mother's murderer with Zuko.