nothing
Splash is a move that is completely useless (with the exception of it in Pokemon Mystery Dungeon, where it deals 5 damage to the opponent and the Pokemon that used it), and is Magikarp's signature move.
Splash wont do anything AT ALL!!!!! people just wanted magikarp to be the weakest Pokemon of all time. :)
These pokemon can all learn it: Magicarp Hoppip Skiploom Driftblim Spoink Grumpig and some others. Search Serebii.net splash to see the entire list. Still... Why do you want to know this? Splash is a useless move that does nothing. Regardless... Hope I helped ;D
"If I remember correctly, in crystal, a guy said ages ago magikarps were very strong, but these days they are very weak. So i guesss they learned the move splash, and it don't do anything, because magikarp is too weak. I think I read somewhere that the creators wanted to make magikarp be the weakest pokemon. So that's probably why splash does nothing: to emphasize the weakness of magikarp." EDIT: You're actually wrong. Magikarp is a very powerful Pokemon; the reason why splash does nothing is because the creators needed to give it a type of Nerf Splash can also be used to leap mountains, and create great devastation. They also had to give it another Nerf; which of course is it's TERRIBLE evolution, Gyrados. Source: http://i.imgur.com/Jgxp4.jpg As you can see, its power is unlimited.
The weakest Pokemon move is splash it doesn't do anything
Splash puts the targets Defense low, and you have no other choice but to use it because it is the only move it knows.(Hurry and learn tackle!)
it only works in water but in water it is a 1 hit K.O
No doubt, the dumbest Pokemon move that has ever existed is Splash attack. It doesn't do anything at all and the signature move of the probably worst Pokemon ever, Magikarp.
nothing
NO
In my opinion, it is Splash.
Nothing
Springboard Frog Splash or just a Splash
never does, never will
Splash. It does no damage.
Frog Splash