As long as Zekrom is in play, whenever any of your Pokémon attack, don’t apply Resistance for that attack. This power stops working while Zekrom is Asleep, Confused, or Paralyzed.
If you have more Prize cards left than your opponent, you may flip a coin. If heads, discard all Energy cards attached to Zekrom, then choose 1 of your opponent’s Pokémon. That Pokémon is now Knocked Out. If tails, Zekrom does 40 damage to itself.