Mr. Mime ex

If Mr. Mime ex would be damaged by an attack, prevent that attack's damage done to Mr. Mime ex if that damage is 10, 30, 50, 70, 90, 110, 130, 150, or 170.

Breakdown

Count the number of cards in your opponent's hand. Put that many damage counters on the Defending Pokémon.

When Pokémon-ex has been Knocked Out, your opponent takes 2 Prize cards.