This Rhyhorn, nicknamed Rhyrhy, is a ground/rock-type Pokémon owned by Y.
Y used Rhyrhy to rescue Shauna, Tierno, and Trevor from the rampage Xerneas and Yveltal made. She ordered Rhyrhy to bring her friends to a save place while she was going to help X. Y later mentioned that she only uses Rhyrhy for racing and not for battling.
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