Board Thread:Character Match-Ups/@comment-4708902-20190504010843/@comment-395229-20190601162206

Mera definitely wins because of greater strength, speed and experience. I don't think bloodbending might be effective since Katara has only used it against humans and Mera's Atlantean biology might prove more difficult to control. Also, Mera can drain water from her enemies, so Katara's options against Mera are pretty limited.