In black 2, I'm having major problems with completing the pokedex.
Where can I see Tepig and Emboar with oshawott as starter?
Where can I see Skitty, Rufflet, Shuppet and Reshiram?
You have to trade with white 2 for all these Pokemon except for Shuppet. You can obtain a shuppet by breeding a Banette, and you can obtain a Banette in the Strange House, Victory Road
Source: http://www.serebii.net/pokedex-bw/354.shtml http://www.gamefaqs.com/boards/661226-pokemon-black-version-2/64800843