Throughout the Pokémon series, there are a plethora of Pokémon that are extremely rare and difficult to catch. No Pokémon has been as consistently difficult to catch as Feebas, and this remains true in Pokémon Brilliant Diamond and Shining Pearl.
Finding and catching Feebas in Pokémon Brilliant Diamond and Shining Pearl will take some extreme patience. Players can only find this Pokémon on the lake at Mt. Coronet. Even worse is that players can only fish it up from four randomly generated tiles of water. There is no way to know which tiles are selected.
If you happen to be fishing in one of these tiles, you have a 50 percent chance to find Feebas. This seems like a lot of headache for a simple water-type Pokémon, but the truth is that Feebas' evolution Milotic is one fantastic Pokémon.
Feebas evolves into Milotic once you increase its beauty enough. Milotic is a bulky water-type Pokémon with a fantastic spread of stats and moves. Plus, you will need both Feebas and Milotic to complete your Pokédex.
For more information on Pokémon, check out How to evolve Magneton into Magnezone in Pokémon Brilliant Diamond and Shining Pearl and Where to find Ponyta in Pokémon Brilliant Diamond and Shining Pearl on Pro Game Guides.