You'll all be sorry for calling Magikarp bad. Because in 20 years from now, global warming will have destroyed the entire atmosphere, making all land animals and pokemon distinct. More than 99% of the water will also disappear.
However, Magikarp can survive with very little water, in fact, according to the pokedex, less than it's own body. Therefore, Magikarp will survive, while everybody else dies. Soon, Magikarp will evolve (not evolve normally, the survival of the fittest way) and become rulers of the world.
Also, it does know the moves tackle and flail (http://bulbapedia.bulbagarden.net/wiki/Magikarp_(Pok%C3%A9mon)#Base_stats)
Abra does not learn any moves by itself (except teleport). You have to use TMs on it.
Cleffa's only damage attack is pound, and it has even worse stats than Magikarp.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS
