>>22573281Blastoise with Drizzle would be kind of stupid. Megha Launcher makes him more versatile since he can fire off pumped up Dark Pulses.
Mega Alakazam doesn't need Magic uard because he can't hold Life Orb. Painless life orb is what makes regular Alakazam better most of the time anyway. You want to improve this guy? Give him Levitate since he's fucking floating above the ground already.
Steelix with Magnet Pull would make him a LOT more useful.
Houndoom with Adaptability would be cool.
Garchomp would go to ubers. Probably do all right there too, but you'd have a miniature weather war going between Garchomp and tyranitar and Mage Groud. Fortunately, Garchomp can hit it with some powerful Earthquakes, so it might work out for him.
Mega Gallade is fine. He is the ultimate insult to people who still cling to crappy moves like Fake Out and crappy pokemon like Ambipom. Limber would have been better, though. Tough Claws puts him in Mega Metagross territory where he might be too strong for OU, but might not be.
Mega Audino needs that badly.
Mewtwo-X would join his buddy Mega Ray in AG heaven, where he has to deal with mountains of Klefkis and the occasional anti-Klefki Diancie squad. Would be funny.
Speed Boost Mewtwo-Y might actually be okay to stay in Ubers. It still doesn't have that good bulk unless you decide not to invest in SpA and go for a specially defensive variant, which doesn't benefit much from the extra speed. On the other hand, you can use Rest now since it lost Insomnia and make it into a nearly immortal setup sweeper once all the physical priority users (I'm looking at you, Arceus) are dead.