Scizor

Mega Scizor thrives thanks to a powerful Bullet Punch, which hits the common Fairy-types, Kyurem-B, and Tyranitar super effectively. With Swords Dance and a powerful priority attack, it does quite well blasting through the opposition. Thanks to a great defensive typing and solid defensive stats, opportunities to set up Swords Dance are fairly easy to come by. This also helps Mega Scizor retain its effectiveness in a metagame where Intimidate is quite common. Mega Scizor's moves tend to have pretty low Base Power, but that ends up somewhat working to its advantage thanks to Technician providing these moves with an extra boost. Bug Bite, its other common attack with somewhat low Base Power, also allows Mega Scizor to take advantage of the ubiquity of healing Berries such as Iapapa and Figy. However, Mega Scizor is rather slow; although this is somewhat mitigated by its primary attack having priority, if Psychic Terrain is set or the foe resists Steel-type moves, it's fairly easy to capitalize on Mega Scizor's low Speed. Since Psychic Terrain inhibits Mega Scizor's primary way of circumventing its problematic Speed tier, it rarely works on teams with Tapu Lele. Fire-type Pokemon and attacks are the largest obstacles Mega Scizor has to overcome, as they immediately shut it down. Aside from Fire- and Steel-types shutting Mega Scizor down, it otherwise does quite well against the majority of common Pokemon.