Bolin

Bolin is Mako's brother and a hero from the Avatar: Legend of Korra Universe. He is a earthbender

After Mako helped his friends save the town from Amon, he was taken suprise by Amon's father who showed up. Bolin and Mako thought Yakvone was dead and how could he be back. Yakvone bloodbends many of the citizens and Bolin retreats with his brother to overthrow Yakvone's opressive plans.

The Multiuniversal War of Destiny
Bolin and his brother show forces with the heroes to fight Discord and Sigma. Discord more so, since he was behind the attacks.