Gen 9 OU
Toedscruel @ Leftovers
Ability: Mycelium Might
EVs: 252 HP / 72 SpA / 28 SpD / 152 Spe
Timid Nature
- Earth Power
- Rapid Spin / Knock Off
- Giga Drain
- Spore
I will preface this by saying Toedscruel is very niche in the OU meta, only finding use due to a spore that breaks through a couple of relevant abilities and through Toedscruel's unique typing and stats that allows it to check threats like Gholdengo.
Spore is slotted as a means to put opponents to sleep, enabling your allies opportunities to get extra moves off. It works especially well with Mycelium Might to put unique stuff like Garganacl to sleep. Earth Power, with 72 SpA EVs gives you enough damage on Earth Power to 2HKO Gholdengo once you remove a potential Air Baloon. Giga Drain provides Toedscruel with extra HP recovery and enables it to chip threats like Great Tusk. Rapid Spin lets you clear hazards in such a hazard infested meta, (Toedscruel is one of the few things to still have spin) but if you feel you don't need it, Knock Off works in the slot too. Both Rapid Spin and Knock Off count as attacks, allowing utility that bypasses Mycelium Might's negative effect.
152 Speed with Timid provides just enough speed to outspeed max speed Great Tusk before a speed boost. Leftover EVs are put into HP and Special Defense to provide as much survivability as possible. Leftovers in the item slot for the same reason.
No Tera type listed since you shouldn't be using your Tera on Toedscruel. There's better options to spend it on.