Mega Swampert Water / Ground Japanese Name: MegaLaglarge Height: 6' 03" Weight: 224.9 lbs. Classification: Mud Fish Pokémon Ability: Swift Swim Revealed: Mega Swampert was revealed alongside Mega Sceptile and Mega Diancie when the June edition of CoroCoro leaked, it was later revealed outside of Japan during Nintendo's Digital Event for E3. Additional Info: When Swampert Mega Evolves into Mega Swampert, the strength that it needs to act in the water is increased, and it can use its tenacious power both on land and in the water. Upon Mega Evolving, Mega Swampert gains the Ability Swift Swim. Despite its large body, its Speed will fully double when the weather is rainy. With an improved Attack stat, put a quick stop to foes! Mega-Evolves from Swampert Mega Stone: ???