Decided that I don't wanna use this team anymore.
Your descriptions aren't indepth enough (for example "rest Sp atk" you mean all 6 of the remaining EV's?
Kabutops will only somewhat function if the enemy has a politoed
Why why why is your rotom holding a flame orb and using hex??? Scarf and Shadowball/Tbolt...
Kingdra is the same as Kabutops also what do you get from having flash cannon? What coverage does it give you? You need to answer these questions yourself when you pick moves
Frosslass is probably the only good(ish) set on here (no offense, you just seem unexperienced) though should be timid
Your "wall" has X4 weakness to the 2 most common attacking types, is to slow to get the sub up before being OHKO'd and has NO recovery
Why do you have aerial ace on Sceptile? What is that for? Why have SpecAtk EVs? What attack are they helping?
Not being harsh but just ask yourself these questions and remake your sets. G'luck
Hey there, interesting team you have here.
Definitely agreeing on Redjar to replace Aerial Ace. I would recommend running Brick Break > Aerial Ace in order to hit steel types like Registeel that you won't be hitting at all with the Aerial Ace+Leaf Blade duo.
Grass isn't bad, maybe not the best but it's better than Flash Cannon as now you can decimate Swampert in UU and Gastrodons in OU. You could run a raindance LifeOrb set.
Unfortunately though, Hydro Pump does NOT increase in accuracy in rain, but the rain does boost it and will definitely do a huge amount of damage to any Pokémon that decides to switch in on it.
But yeah, as chunx93 said, you really should take advantage of the fact that you have two Swift Swimmers on your team by using Rain Dance on Kingdra.
Best of luck!