"They love the cold seas of the north. They create pathways across the ocean waters by freezing their own breath. It freezes its breath to create fangs and claws of ice to fight with. Cold northern areas are its habitat."
Beartic first appeared as a Cubchoo in BW022 during a freak snow shower in Striaton City. Lexi rescued the Cubchoo after it was abandoned by its mother, however, was very shy. His personality resulted in his battling technique suffering, losing many of his battles due to his lack of passion, including the Nacrene Gym. After his battle against Elesa in BW046/BW047 at the Nimbasa Gym, he became determined to improve himself and his battling. He worked hard, beginning to win and improve his battles more, including his battles against Skyla and Brycen. He eventually evolved in BW151 after a training session.
After evolving into Beartic, it became stronger at a rapid pace. He fast became one of Lexi's strongest Pokémon throughout her Unova journey. He was used in the Unova League against Shauntal and Caitlin.
He returned two years later during the Unova League where Lexi used it during her battle against Caitlin once more.
When first captured as a Cubchoo, he was a very shy and timid Pokémon who didn't really interact with anyone else, other than Lexi. As time progressed, he came out of his shell more, until eventually, upon evolution, becoming strong and ferocious.
Beartic has the ability to freeze its breath at will. He can create pathways across the ocean through ice. It can also create fangs and claws of ice.