Latios @ Choice Scarf
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Trick
- Dragon Pulse
- Hidden Power [Fire]
- Psyshock

Manectric-Mega @ Manectite
Ability: Intimidate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Hidden Power [Ice]
- Thunderbolt
- Volt Switch
- Flamethrower

Bisharp @ Life Orb
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Sucker Punch
- Iron Head
- Brick Break

Victini @ Choice Scarf
Ability: Victory Star
EVs: 252 HP / 4 SpD / 252 Spe
Jolly Nature
- Final Gambit
- V-create
- Bolt Strike
- Trick

Magearna @ Fairium Z
Ability: Soul-Heart
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
IVs: 0 Atk
- Shift Gear
- Thunderbolt
- Ice Beam
- Fleur Cannon

Ferrothorn @ Rocky Helmet
Ability: Iron Barbs
EVs: 248 HP / 252 Atk / 8 SpD
Brave Nature
IVs: 0 Spe
- Spikes
- Stealth Rock
- Gyro Ball
- Explosion

The victini is max HP & speed so it out speeds and lures in Pokemon like Toxapex or Chansey and others that could possibly 1v1 it, and it goes for final gambit to either OHKO or to just nearly OHKO (It's a bit of a troll but I like to use it) If you don't want that then you can change it, or you could change the EVs or the move-set and run normal victini. I just find something it most people don't expect!

All the other sets are fairly standard, but I love how mega manectric does in OU, so I really want to see you PIMP MY SQUAD!
-Bisharp is mainly a sucker punch sweeper, and you could replace brick break for knock off (as utility) but brick break hits other dark types + Chansey
-With defiant Bisharp may be able to swap in on defog for some mons (like zapdos) but not fini
Obviously some moves could be replaced with other moves e.g latios dragon pulse with draco, and manectric flamethrower with overheat, which coud both work.

P.S I love your videos and don't listen to those title haters, they just don't get how amazing your titles are!

P.P.S sorry for rambling (and for posting 2 teams)