Boldore

Ash's Boldore was the eighth Pokémon Ash caught in the Unova region.

History
Ash caught his Boldore as a Roggenrola in BW037 after he helped it to save a group of some other Roggenrola from Team Rocket. After an intense battle with Tepig, Ash caught it. It was used again in Where Did You Go, Audino? in order to search for the missing Audino in a town.

In Battle For The Underground!, it used Flash Cannon alongside Tepig's Ember (Flamethrower) and Axew's Dragon Rage to escape from Dr. Zager's helicopter at the Battle Subway.

In Stopping the Rage of Legends! (Part 2) it saved Tornadus, Thundurus and Landorus by using Flash Cannon on the helicopter piloted by Dr. Zager over and over again until joined by Pikachu, Axew, Emolga and Pansage to destroy the cages the trio was in.

In Battling the King of the Mines! Ash used it to battle Clay's Excadrill. During the battle it evolved and at the same time learned Rock Smash and Rock Blast and helped Ash win the Quake Badge.

It appears again in Evolution Exchange Excitement! were it had a Tag battle with Crustle against Profesor Juniper and Bianca's Accelgor and Excavalier Boldore put up a good fight managing to inflict some damage with Rock Blast, Rock Smash and Flash Cannon but it was defeated by a double Hyper Beam attack.

In Rocking the Virbank Gym! (Part 1) Ash used Boldore to battle against Roxie's Koffing. Boldore used Sandstorm but Koffing hang in there and used Clear Smog. Boldore also used Rock Blast but it was blocked by Koffing Gyro Ball. After Boldore used Flash Cannon, Koffing avoids it and used another Gyro Ball, defeating Boldore.

Trivia

 * Boldore is the first Rock-type Pokémon Ash has caught.
 * Boldore is also the first of Ash's Pokémon that knows the move Flash Cannon.
 * Boldore is the second of Ash's pokemon to know Stone Edge the first being Ash's Gliscor.
 * Boldore is the fifth of Ash's Pokémon that knows a Steel-Type Move, the first is Pikachu knowing Iron Tail, the second is Charizard knowing Steel Wing, the third is Torkoal knowing Iron Defense, and the fourth is Gliscor also knowing Steel Wing.
 * Boldore is the second of Ash's Pokemon to evolve during a Gym battle, the others are Leavanny and Unfezant.