Gen 8 Monotype [Electric]
Pincurchin @ Terrain Extender
Ability: Electric Surge
EVs: 252 HP / 252 Def / 4 SpD
IVs: 0 Atk
Bold Nature
- Rising Voltage
- Spikes
- Toxic Spikes / Scald
- Recover
You'll never really want to use Pincurchin when you can use Tapu Koko instead, but if for some reason you like to ignore the meta, you'll want Pincurchin. This set is supposed to set Electric Terrain for abusers like Alolan Raichu. Terrain Extender prolongs Electric Terrain, and the Bold Nature boosts its Defense while lowering the unnecessary Attack stat.
Both Spikes and Toxic Spikes are used to soften up opponents so your teammates can take them down more easily. Recover helps Pincurchin stick around, which is good if Electric Terrain ever needs to be set back up after it fades. Rising Voltage is a nice STAB move that's even better in Electric Terrain. You can choose Scald over Toxic Spikes if your team struggles with Ground types or physical attackers, and your only answer is Pincurchin for some reason.
The 0 Attack IVs minimize Foul Play and Confusion damage. The EV spread helps make Pincurchin bulkier, an important factor in its longevity on the field.