Gen 8 SWSH Monotype (Rock)
Nihilego @ Power Herb
Ability: Beast Boost
EVs: 80 Def / 176 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Meteor Beam
- Thunderbolt
- Grass Knot
- Sludge Wave / Dazzling Gleam
This is the Meteor Beam set used on Rock-type teams in SWSH Monotype. Meteor Beam is for Rock STAB which raises your special attack and can be executed in one turn with your Power Herb. Thunderbolt is used for coverage such as most Water-types and can be used on Flying-types. Grass Knot allows you to deal with Water/Ground types like Seismitoad and Swampert as well as Ground-types like Hippowdon after you get a special attack boost. Sludge Wave can be used for Poison STAB, whereas Dazzling Gleam can be used instead for coverage against Dragon-types.
The given EVs allow Nihilego to gain a speed boost after a KO to become harder to revenge kill. Usually, 80 EVs go to HP since they are leftover EVs. However, with 80 EVs in Defense, you have a decent chance of survivng a Choice Band Aqua Jet from Urshifu if you're at full HP, as shown in this calc:
252 Atk Choice Band Urshifu-Rapid-Strike Aqua Jet vs. 0 HP / 80 Def Nihilego: 308-366 (85.7 - 101.9%) -- 12.5% chance to OHKO
Possible damage amounts: (308, 312, 318, 320, 324, 326, 332, 336, 338, 342, 344, 350, 354, 356, 360, 366)
Just don't directly switch in to Urshifu-R if you want to revenge kill it.