Negative Ion
Cost: Colorless
During your opponent's next turn, any damage done by attacks from the Defending Pokémon is reduced by 30 (before applying Weakness and Resistance).

HP 60 · Lightning
Pokémon — Basic
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Cost: Colorless
During your opponent's next turn, any damage done by attacks from the Defending Pokémon is reduced by 30 (before applying Weakness and Resistance).
Cost: Lightning
This attack does 10 damage to each of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)
A format is a way to play the Pokémon card game with its own deck-building rules. Legal means this card can be played there when your deck also meets those rules.
Banned means the card cannot be played in that format. Legality changes when Standard rotates or when the ban list is updated.