I want to run a competitive Scientist team. I need some suggestions on how to improve my team. Here they are:
Magnezone - Air Balloon, Sturdy
Thunderbolt
Flash Cannon
Signal Beam
Tri Attack
I'd suggest replacing Tri Attack with Volt Switch. Magneozne is slow. a slow Volt Switch allows you to bring another Pokémon into the field safely.
Alolan Muk - Lum Berry, Poison Touch
Acid Spray
Knock Off
Rock Slide
Curse
You better off using Black Sludge for HP recovery. Also you should use Poison Jab over Acid Spray. You're using your weak sp att to lower their sp def, but Muk won't benefit from that. You could also consider Shadow Sneak over Rock Slide for priority.
Porygon 2 - Eviolite, Analytic
Tri Attack
Recover
Ice Beam
Magic Coat
Thunderbolt over Magic Coat. Thunderbolt+Ice Beam is the famous "Boltbeam" combo. It will allow you to hit a LOT of Pokémon for at least neutral damage. That's usually all the offensive you need.
Beheeym - Leftovers, Synchronize
Psychic
Energy Ball
Nasty Plot
Shadow Ball
Beheeyem is too slow ot make a good use of Nasty plot, sadly. Better off using an all offensive set with Analytic (to make use of the low speed somehow) and a life orb/Choice specs. You could also use Trick Room to make it go first, but it would hinder Klingklang and Ditto.
Klinklang - Rocky Helmet, Clear Body
Gear Grind
Shift Gear
Discharge
Hidden Power Fighting
Incredibly enough, I'm going to suggest Return over Hidden Power. It also has access to Wild Charge. Klingklang has a very shallow movepool. A shame... Substitute over Return is also an option.
Right now you're using an attack boosting move (Shift Gear) but using his weaker, and unboosted, sp att.
For an item you need either a Life Orb to boost your damage or a Lum Berry to protect you from status (but don't use that if you're using substitute)
Ditto - Quick Claw
Just get yourself a Ditto with the Imposter Ability. It will transform into the opposite mon as soon as it enters the field. People usually use it with a Choice Scarf, because when you copy them, you also copy their stat changes. So imagine the opponent has a Garchomp and used Swords Dance. When your Imposter Ditto enters the field, it will transform into a Garchomp with +2 attack from the Swords Dance AND +1 speed from the Choice Scarf.