Okay, I only have about a month and a half of VGC experience, and I just nuked my old team cause it just wasn't doin' it for me (it was a trick room team that just seemed to never work out), so I decided to start from scratch, and here is what i came up with:

Hawlucha @ Lum Berry
Ability: Unburden
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Acrobatics
- Rock Slide
- Quick Guard
- Brick Break/Low Sweep/High Jump Kick

Sableye @ Leftovers
Ability: Prankster
EVs: 252 HP / 4 SpD / 252 Spe
Jolly Nature
- Swagger
- Flatter
- Will-O-Wisp
- Taunt

Noivern @ Persim Berry
Ability: Infiltrator/Telepathy
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Boomburst
- Dragon Pulse
- Flamethrower/Focus Blast
- Protect

Klefki @ Air Balloon
Ability: Prankster
EVs: 156 HP / 100 Def / 252 SpD
Relaxed Nature
- Swagger
- Foul Play
- Thunder Wave
- Crafty Shield

Miltank @ Sitrus Berry/Life Orb
Ability: Thick Fat
EVs: 252 HP / 4 Def / 252 SpD
Impish Nature
- Heal Bell
- Milk Drink
- Earthquake/Rock Slide
- Return/Rock Slide

Ampharos @ Ampharosite
Ability: Static
EVs: 200 HP / 56 SpA / 252 SpD
Modest Nature
- Cotton Guard
- Thunder Wave/Volt Switch
- Thunderbolt
- Dragon Pulse

I know this team looks super non-standard, but I feel like I might be able to make it work. The main team plan here is to swagger/flatter either hawlucha or noivern respectively to pop their berries and have them run train over the other team. If there are two or more moves/items/abilities per move slot/item slot/ability slot, it means i couldn't decide which one to run, partly why I'm asking for advice on this team