Posting 1 of my team that I like alot and works pretty well

1.
Pokemon: Aerodactyl
Nature: Jolly
EVs: 4 HP / 252 Atk / 252 Speed
Moves: Stealth Rock / Rock Slide / Earthquake / Roar
Item: Focus Sash
- Common suicide lead ...
The other pokemons are in no particular order
2.
Pokemon: Ninjask
Nature: Jolly
EVs: 252 HP / 4 Atk / 252 Speed
Moves: Substitute / Protect / Baton Pass / X-scissor
Item: Leftovers
- Gives speed to my choice banded pokemon for a fast kill
3.
Pokemon: Tyranitar
Nature: Adamant
EVs: 180 HP / 252 Atk / 76 Speed
Moves: Earthquake / Crunch / Rock Slide / Aqua Tail
Item: Choice Band
- Goes in after speed boost by Ninjask then go for an quick and fast kill
4.
Pokemon:Starmie
Nature: Timid
EVs: 4 HP / 252 SpA / 252 Speed
Moves: Surf / Thunderbolt / Ice Beam / Psychic
Item: Choice Specs
- Revenge killer
5.
Pokemon: Umbreon
Nature: Impish
EVs: 4 HP / 252 Def / 252 SpD
Moves: Baton Pass / Curse / Payback / Wish
Item: Leftovers
- Mix tank and curse passer to Donphan
6.
Pokemon: Donphan
Nature: Impish
EVs: 252 HP / 4 Atk / 252 Def
Moves: Ice Shard / Earthquake / Roar / Rapid Spin
Item: Leftovers
- Rapid spinner, Shuffler, Physical tank ... and maybe sweeper if it gets enough curse boost from umbreon
Give me your IMOs and maybe ideas to make this team better

... so far its been awesome!
Questions :
Should I make my Ninjask a dedicated Baton passer? ... wich means I take off X-scissor and add Sword Dance
Haha, I don't know how many times I've mentioned this, but, your team is kinda Scarf Heracross weak, he takes out about 4 of your pokes.
And I would agree that Donphan isn't the best poke to Curse pass too, maybe to the likes of Snorlax or even to your Tyranitar would make more of it, if you remove the CB.