Matt Bird writes all sorts of nonsense, but he dedicates a large chunk of his time to writing game walkthroughs.
Fishing rods have long been a staple of the Pokémon franchise, and that hasn't changed much in Pokémon Black 2 and White 2. And, like past games, the Fishing Rod's location isn't made blatantly obvious in this game. How do you track it down? And what's different about it this time?
Finding the Rod
The Fishing Rod in Pokémon Black 2 and White 2 is one of the key items you'll find in the game. In Pokémon Black and White, it was given to you automatically by Looker after you beat the game for the first time; in this go around, you receive it significantly later, from Professor Juniper's father, Cedric.
Once you've beaten Pokémon Black 2 and White 2's champion at least once, you'll open up a huge portion of Unova that was previously unexplored. This includes the original starting point for Pokémon Black and White, Nuvema Town, which will probably be the last town you'll ever visit. Travel there and look in the professor's laboratory. Cedric will be waiting, and he'll hand over the Fishing Rod.
Changes to the Fishing Rod
In previous Pokémon iterations, the Fishing Rod was split up into three different versions: Old, Good, and Super. The newest rod gets rid of the other two forms and simply gives you the Super Rod, a potent item that can pull Pokémon out of the waters at high levels. It's one of the best ways to get Water-type Pokémon in the game.
The Super Rod also brings with it one other boon: fishing in whirlpools. As you travel near water you'll occasionally come across small whirlpools, similar to the dust clouds in caves or the rustling of grass outside, which indicates the presence of a rare Pokémon. You can further bolster what Pokémon you'll get by fishing from the edge of these whirlpools. A prime example is Milotic, a Pokémon that's generally a pain to evolve, being available to catch on Route 1 by fishing into whirlpools. If you want fully-evolved, powerful Water-type Pokémon, this is the way to get them.