Magnemite (Cosmic Eclipse CEC 242)

Magnemite — 60 HP — [L]
Basic

[L] Mirror Shot: 10
If the Defending Pokémon tries to attack during your opponent’s next turn, your opponent flips a coin. If tails, that attack doesn’t happen.

weakness: [F]×2
resistance: [M]-20
retreat: 1

Illus. Fumie Kittaka
Cosmic Eclipse — 242/236 — Rare Secret

It’s frequently the cause of power outages, which is why some power plants send out electrical signals that it can’t stand.