VGC 2016 team

Hey Kyle I've commented on your vids as "MWBGoldsmith". This is the team I've been trying out on VGC 2016. I wanted to build a team around using Venusaur. The general strategy is to use Venusaur/Groudon and try to abuse the sun. Otherwise I use Crobat with Salamence/Xerneas and try to sweep with Tailwind.  I would greatly appreciate any feedback you have for it! Thanks.

Iris (Venusaur) (M) @ Focus Sash
Ability: Chlorophyll
Level: 50
Shiny: Yes
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- Giga Drain
- Sludge Bomb
- Sleep Powder
- Protect

Aegislash @ Weakness Policy
Ability: Stance Change
Level: 50
EVs: 252 HP / 100 SpA / 156 SpD
Modest Nature
- Shadow Ball
- Flash Cannon
- Wide Guard
- King's Shield

Groudon-Primal @ Red Orb
Ability: Desolate Land
Level: 50
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Fire Punch
- Precipice Blades
- Rock Slide
- Protect

Salamence @ Salamencite
Ability: Intimidate
Level: 50
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
- Draco Meteor
- Hyper Voice
- Fire Blast
- Protect

Crobat @ Lum Berry
Ability: Inner Focus
Level: 50
EVs: 252 HP / 4 Def / 252 Spe
Jolly Nature
- Super Fang
- Taunt
- Tailwind
- Quick Guard

Xerneas @ Power Herb
Ability: Fairy Aura
Level: 50
EVs: 252 SpA / 4 SpD / 252 Spe
Serious Nature
- Dazzling Gleam
- Moonblast
- Geomancy
- Protect