Rate my team for a double battle tourney, guys:

Roserade
- Toxic
- Giga Drain
- Leech Seed
- Sludge Wave
Items: Big Root
EVs: 100 Speed, 100 Sp. D, 252 Sp. Atk, the rest is in HP

Heatran
Moves:
- Earthquake
- Heat Wave
- Fire Spin
- Scary Face
Item: Flame Plate
EVs: 252 Sp. Atk, 128 Def, 128 Sp. Def

Aegislash
Moves:
- Shadow Sneak
- King's Shield
- Sacred Sword
- Sword Dance
Items: Rocky Helmet
EVs: 252 Def, 252 Atk, 4 Speed

Gardevoir
Moves
- Moon Blast
- Psychic
- Calm Mind
- Focus Blast
Item: Gardevoirite
EVs: 252 Sp. Atk, 252 Speed, 4 Sp. Def


Weavile
Moves
- Night Slash
- Punishment
- Ice Shard
- Beat Up
Item: Life Orb
EVs: 252 Atk, 252 Speed, 4 Def.

Crobat
Moves
- Cross Poison
- Fly
- U-Turn
- Roost
Items: Black Sludge
EVs: 252 Speed, 252 Attack, 4 HP