Mr. Mime-GX (Celestial Storm 156/168)
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Ability Magic Evens

Prevent all damage done to this Pokémon by your opponent's attacks if that damage is exactly 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, or 260.

Psychic Colorless
Breakdown

For each card in your opponent's hand, put 1 damage counter on their Active Pokémon.

Colorless
Life Trick-GX

Heal all damage from this Pokémon. (You can't use more than 1 GX attack in a game.)

Card rule

When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.