Whiscash's Ability when it was introduced in Generation III is Oblivious. This Ability prevents it from becoming Infatuated with an opposing Pokémon of the opposite gender. Its second Ability was introduced in Generation IV, the Anticipation Ability, which alerts itself to when the opponent knows an attack that will be Super-Effective against it, or if the foe knows one of the four One-Hit KO moves. A third Ability is available to Whiscash from the Dream World, the Hydration Ability. This Ability heals all Status problems when it is raining.
Barboach can evolve into Whiscash once it reaches Level 30.
Whiscash is listed in the Water 2 Egg Group, and its Egg takes approximately 5,120 Steps to hatch. It takes Whiscash One Million Experience Points to reach Level 100.
Whiscash resembles a blue catfish with lightly-colored whiskers.
Whiscash doesn't have any differences to differentiate between male and female.
Whiscash can be found at Routes 205 (North), 208, 210 (North), 212 (South), 227 & 228, along with Oreburgh Gate B1, Ravaged Path, Eterna City, Mt Coronet's Route 207 Entrance, B1 & 4F, and throughout the Great Marsh in Diamond, Pearl, and Platinum when Fishing with the Good Rod. Whiscash appears at Violet City in Heart Gold and Soul Silver by fishing with the Super Rod during a Swarm.
Whiscash appears at Secret Storage 12 and Mr. Who's Den in Pokémon Trozei!.
Whiscash can only be obtained by evolving a Barboach in the first round of Mystery Dungeon games. In Explorers of Time, Explorers of Darkness & Explorers of Sky, Whiscash appears at Waterfall B5-B8. Whiscash is exclusive to Stormy Adventure Squad in Mystery Dungeon 3, appearing at Stream Forest B5 and B6.
Whiscash has yet to appear in a game in the Pokémon Ranger series as of writing.
Whiscash can be found at Soothing Shore Lake 2-3 in Pokémon Rumble Blast.
Trading Card Game
Whiscash appears in a total of five sets. It is listed as an Uncommon Card in the EX Dragon, EX Holon Phantoms and Rising Rivals (Elite Four) sets. Whiscash appears as a Rare Card in the EX Deoxys and Mysterious Treasures sets.
A Wild Wishcash that had grown to ginormous proportions was featured in the episode Whiscash and Ash. The Giant Whiscash tried to eat Ash's Hoenn Gym Badges, only to eat something else towards the end of the episode: the Master Ball, thrown at the Wishcash by the Master Fisherman.
Another Trainer used a Whiscash in the film Pokémon Ranger and the Temple of the Sea, the only appearance in the films thus far for Whiscash.
Whiscash's Manga info is unknown at this time.
Whiscash finds itself in the Never-Utilized and Rarely-Utilized Tiers of Competitive Battling. Its Hidden Ability Hydration gives it more longevity with Rain Dance support from either a teammate or itself, especially combined with Rest. Additionally, it can use Dragon Dance to boost both its Attack and Speed to dangerous levels.
Without Statistic boosts, Whiscash still has bulk to deal with, but can be dealt with relatively easily by using a Grass-Type attack, which it takes 4 times the damage from. Also, eliminating the rain with another weather condition or using a Pokémon with the Cloud Nine Ability will take its Hidden Ability out of play.
Via Dream World (Barboach)
Via Move Tutor (Black 2/White 2)
Generation III Exclusive Move Tutor Moves (Fire Red/Leaf Green)
Generation IV Exclusive Moves
Via Move Tutor (Heart Gold/Soul Silver)
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