Leader of Jigglypuff Army
I admit that I phrased my previous comment incorrectly. It's not that I think Mega Swamoert is uninspired because it DOES look super strong which makes it cool looking but the Ability just doesn't fit it at all nor does it seem to make sense. Mega Bkaziken gets its regular version's HA. Mega Sceptile's may seem odd at first but once you remember how lightningis attracted to trees and Sceptile's tail is now a giant tree, it makes sense. Mega Venusaur gets damage from two of its major weaknesses cut in half, and Mega Blastoise has a huge single cannon so Mega Launcher fits it nicely. Mega Charizard X and Y also have pretty useful Abilities. But all Mega Swampert gets is an Ability that works only during any if the rain related Abilities and weather conditions. I just think that it should have been given a different Ability that would utilize its Attack stat more.