I actually wanted to fish for a Magikarp, but thanks for the info, that's what I wanted.yes it will work even of the pokemon only has ability, and if the pokemon you want is in sendoff spring then you can fish there. If your just fishing to check your seed then you can just fly to the resort area and fish a magikarp (they come at high levels), as long as you don't wait too long to do it the NPC movements wouldn't have advanced the frames much and you can still check your seed. Note: the high level magikarp in the resort area only appear in Platinum not D/P