Screener Claydol
Claydol @
Light Clay
Ability: Levitate
EVs: 252 HP / 240 Def / 16 Spe
Bold Nature
-
Reflect
-
Light Screen
- Rapid Spin/Explosion
- Scorching Sands
General idea
The idea is to use Claydol as a bulky screener (with the aid of Light Clay) because this pokemon is pretty bulky.
Scorching Sands as STAB move here can be good because Claydol can't deal much damage anyway (especially when uninvested) and you might fish a useful burn.
The 4th slot is up to you. You can opt for Rapid Spin if you want more role compression and/or you need a Rapid Spinner with the possibily to enter multiple times under the screens. Otherwise, you can use Explosion to keep the momentum after having played the screens and is picked over Teleport (which is really good) because it is Taunt-proof.
The EVs spread is highly customizable, but 16 Spe EVs are here to outspeed Alolan Exeggutor. The remaining EVs are invested in the physical bulk; otherwise you can invest on both sides of the spectrum, but I don't recommend because focusing on only one side can allow Claydol to set-up screens more easily towards some threats (physical offensive or special offensive depending on your EVs spread).