Have you tried to have golbat holding the soothe bell the whole time?
Anyway 9/10 Currently.
As the golbat haven't evolved, it's still makes the team a bit weaker.
If you evolve golbat, get the acrobaties and no items crobat holding= very useful
I also wonder if your team need some grass type.
Just thinking if a quagsire or something comes.
With showing the moves and ability, that's more better for me rating the team.
Delphox.
Why sunny day? I personally doesn't think it's useful unless for a sun team.
It can also weaken the surf from greninja.
I reccommend easily if you used will o wisp or shadow ball(which you can get after 7th gym in a event thing.)
Greninja.
Really good. Althrough when you get the move relearner(which you can get by doing some help center thing.) get the night slash.
For now, it's perfect as it is.
Leavanny.
Good enough, haven't so much opinion against this.
Sword dance + psycial moves is good enough.
Mawile is mawile, not so special.
But good overrall.
Ampharaos. Good as it is currently.
When you get the move relearner, get the dragon pulse and remove signal beam.
Don't need three pokemon with bug move.
Sandslash is alright, but i perfer mamoswine really more.
It's movepool isn't really too good, and the speed is meh.
However, you have sandstorn which boost the speed, so props there. But at the same time, risky.
I just don't think it's needed for two sword dance pokemon.
In typing... I think the team can cover each typing.
Rating is 8.5/10
Nice team, but some can be risky expection of sandscrew.
Feebas is useful by the moves, but the stats is very poor then again. Since the feebas comes from shadow type.
If you are asking me to replace the team, toxicroak or leavanny really.
Team: 8.5/10
Feebas is kinda decreasing the team really, half of your team is weak against ground type.
No pokemon against electric type. Well ampharaos and leavanny can resist them still.
If i really wanted the pokemon to replace, it would defintely be toxicroak.