The Unova Starter Pokémons can be picked out of three Pokémons that cannot be found in the Unova Region. The three starter Pokémons are: Snivy a grass-type Pokémon, Oshawott a water-type Pokémon and Tepig a fire type Pokémon. These have the abilities: Overgrow that will increase the Pokémon grass moves when the Pokémon has only 30% of its Heal Points left, Torrent that will increase the Pokémon water moves when the Pokémon has only 30% of its Heal Points left and Blaze that will increase the Pokémon fire type moves when the Pokémon has only 30% of its Heal Points left.
In Pokémon Black Version and Pokémon White Version, Professor Juniper bring the Pokémons to the players house which Cheren and Bianca comes and pick up their starter Pokémon alongside with the player. Cheren will pick up a Pokémon that is strong against the player Pokémon as Bianca picks up the Pokémon that is weak to the player.
In Pokémon Black Version 2 and Pokémon White Version 2, Bianca is coming to the starting town Aspertia City to give the player his/her new starter Pokémon. Unfortunately the player's rival Hugh doesn't get a new starter Pokémon but will battle you with the Pokémon that he got since it was an egg. He has a Pokémon that is stronger than your starter Pokémon.