Yes. Pokemon Ultra Emerald Magikarp's trait is either leisurely swimming or the hidden trait of timidity. The leisurely swimming characteristic will increase the speed in rainy weather. The cowardice trait will increase your speed due to cowardice when attacked by evil, ghost, or insect-type moves. Magikarp's initial skill: Leap. Magikarp's level is upgraded to level 20 or above and evolves into Gyarados.