I dunno why I haven't won this thing yet (see my Thundurus and Latios submissions) but here's a hella cool entry,
Bulky SD (Rain) Scizor! I know that everyone runs Bug Bite with this guy when they wanna get their SD on, but simply put, I ain't about that life. I decided to use a lot more bulk than most mega scizors because I find that when I use Mega Scizor on rain teams, there is a lot of defensive pressure put on this guy (especially because he only has one weakness). Knock Off > Bug Bite for this set because it lets Scizor deal huge damage to any Pokemon that want to switch into it that resist both of its STAB attacks (Aegislash and Heatran come to mind).
The Special Defense and HP EVs let you set up on Aegislash and 72+ Atk is just enough OHKO it with +2 Knock Off. The Defensive investment is mostly in place just to round off your bulk, but you just happen to survive an LO Flare Blitz from Talonflame in the rain so if you can get an SD up before it comes in you can beat it 1v1. goddam scizor. You can set up on Earthquake users like Landorus T and Garchomp, both of which fail to 2HKO you.
Make sure the rain is up, and you can survive heat waves from modest Heatran and even Charizard Y (if that ever happens but I doubt it, it's just kinda cool). You can knock off Heatrans Item, and do some heavy damage if you're lucky enough to have an SD
Click Me (Scizor-Mega) @ Scizorite
Ability: Technician
EVs: 252 HP / 72 Atk / 84 Def / 100 SpD
Adamant Nature
- Knock Off
- Bullet Punch
- Swords Dance
- Protect / Roost
Vs Aegisslash
+2 76+ Atk Mega Scizor Knock Off (97.5 BP) vs. 252 HP / 0 Def Aegislash-Shield: 324-382 (100 - 117.9%) -- guaranteed OHKO
252+ SpA Aegislash-Blade Shadow Ball vs. 248 HP / 100 SpD Mega Scizor: 144-171 (41.9 - 49.8%) -- guaranteed 3HKO
Vs Talonflame (rain)
+2 72+ Atk Mega Scizor Knock Off (97.5 BP) vs. 4 HP / 0 Def Talonflame: 304-358 (102 - 120.1%) -- guaranteed OHKO
252+ Atk Life Orb Talonflame Flare Blitz vs. 248 HP / 84 Def Mega Scizor in Rain: 281-333 (81.9 - 97%) -- guaranteed 2HKO
Vs (Charizard Y) rain
252+ SpA Mega Charizard Y Heat Wave vs. 248 HP / 100 SpD Mega Scizor in Rain: 268-316 (78.1 - 92.1%) -- guaranteed 2HKO
Vs (Heatran) rain
252+ SpA Heatran Heat Wave vs. 248 HP / 100 SpD Mega Scizor in Rain: 228-268 (66.4 - 78.1%) -- guaranteed 2HKO