Lucario
Atk 110, Sp. Atk 115, Speed 90
Ability: Justified
Item: Life Orb/ Focus Sash
EVs: 252 Speed, 180 Sp. A, 76 Atk
Aura Sphere
Close Combat
Extreme speed/ Bullet Punch
Swords Dance
Kyurem (ordinary form)
Atk 130, Sp. Atk 130, Speed 95
Ability: Pressure
Item: Life Orb
EVs: 252 Speed, 200 Sp. A, 56 Atk
Draco Meteor
Ice Beam
Outrage
Dragon Claw/ Earth Power
Venusaur
Atk 82, Sp. Atk 100, Speed 80
Ability: Chlorophyll
Item: Black Sludge/ Life Orb
EVs: 252 Speed, 200 Atk, 56 Sp. A
Growth
Giga Drain
Seed Bomb
Earthquake
(best used in the sun)
Salamence
Atk 135, Sp. Atk 110, Speed 100
Ability: Moxie/ Intimidate
Item: Life Orb/ Choice Scarf
EVs: 180 Sp. Atk, 252 Speed, 76 Atk
Draco Meteor
Outrage
Fire Blast
Earthquake
EDIT: I didn't see the U-Turn requirement.
the above can't learn U-Turn, but they're good Mixed sweepers, so I'll leave their sets up for consideration
Zoroark
Atk 105, Sp. Atk 120, Speed 105
Ability: Illusion
Item: Choice Scarf/ Leftovers/ Life Orb
EVs: 252 Speed, 128 Sp. Atk, 128 Atk
Punishment (to deal with calm mind)/ Foul Play (to deal with Bulk Up)
Dark Pulse
Nasty Plot/ Flamethrower (to deal with bug types)
U-Turn
Hydreigon
Atk 105, Sp. Atk 125, Speed 98
Ability: Levitate
Item: Life Orb
EVs: 252 Speed, 180 Atk, 76 Sp. Atk
Draco Meteor
Earthquake
Roost/ Fire Blast
U-Turn
Jirachi
Atk: 100, Sp. Atk 100, Speed 100
Ability: Serene Grace
Item: Leftovers
Body Slam
Iron Head
Thunderbolt/ Hidden Power Ice
U-Turn