Battle Frontier (Japanese: バトルフロンティア Battle Frontier) is a Stadium card. It was first released as part of the EX Emerald expansion.
This card was included in the EX Emerald expansion, first released in the Japanese Mirage's Mew Constructed Starter Deck. It was reprinted in the EX Power Keepers expansion.
The first Battle Frontier was introduced in Pokémon Emerald.