SM OU help me with this team

[afk until tilt]

I can't climb up to 1700 and i make this post for heart your opinion of this team:




Magearna @ Assault Vest
Ability: Soul-Heart
EVs: 248 HP / 8 SpA / 252 SpD
Sassy Nature
- Iron Head
- Fleur Cannon
- Hidden Power [Fire]
- Volt Switch

Hippowdon @ Leftovers
Ability: Sand Stream
EVs: 252 HP / 164 Def / 92 SpD
Impish Nature
- Earthquake
- Slack Off
- Whirlwind
- Stealth Rock

Toxapex @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 132 Def / 124 SpD
Calm Nature
IVs: 0 Atk
- Scald
- Toxic
- Recover
- Haze

Tornadus-Therian @ Flyinium Z
Ability: Regenerator
EVs: 112 HP / 188 SpA / 208 Spe
Timid Nature
- Heat Wave
- U-turn
- Defog
- Hurricane

Medicham-Mega @ Medichamite
Ability: Telepathy
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- High Jump Kick
- Zen Headbutt
- Ice Punch
- Fake Out

Kartana @ Choice Scarf
Ability: Beast Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Smart Strike
- Knock Off
- Leaf Blade
- Sacred Sword

 

[Gross Sweep]

Welcome to Smogon! I'm locking your RMT for the time being as the forum rules require that you provide in-depth descriptions for each Pokemon to explain their roles. Please read the rules carefully and take a look at Team Showcase to see the level of detail we require. PM me with updated descriptions and I'll be happy to unlock this.