Undine's Lake Monster Farm: Enbanseki no himitsu : Season 1 Episode 24

Genki and his friends come across a trio of Centaurs, proud warriors who serve Moo, but have a code of honor of their own. They challenge the Searchers to a tournament, but there is a squad of Salamanders in the area as well, and they don't want the Centaur to have the glory of Genki's capture.