I am making a team, and I want to know if I an get some criticism and advice on what I should change/add to it. Right now I am using 5 Pokemon, and I cannot think of a 6th to add that can help round off anything my team is missing. Here is currently what I am using:

Galvantula @ Focus Sash
Ability: Compound Eyes
EVs: 252 SAtk / 252 Spd / 4 HP
Timid Nature
- Thunder
- Bug Buzz
- Sticky Web
- Energy Ball

Kangaskhan (F) @ Kangaskhanite
Ability: Early Bird
EVs: 252 Spd / 252 Atk / 4 HP
Adamant Nature
- Sucker Punch
- Earthquake
- Return
- Power-Up Punch

Azumarill @ Sitrus Berry
Ability: Huge Power
EVs: 252 Spd / 252 Atk / 4 HP
Adamant Nature
- Aqua Jet
- Waterfall
- Belly Drum
- Play Rough

Escavalier @ Assault Vest
Ability: Overcoat
EVs: 252 Atk / 252 Def / 4 SDef
Careful Nature
- Megahorn
- Pursuit
- Iron Head
- Toxic

Crobat @ Black Sludge
Ability: Infiltrator
EVs: 136 Spd / 176 HP / 192 Atk / 4 SDef
Jolly Nature
- Brave Bird
- Taunt
- Roost
- Defog