As long as your opponent has Kyogre, Kyogre ex, Rayquaza, or Rayquaza ex in play, Groudon ex's attacks do 40 more damage to the Defending Pokémon (before applying Weakness and Resistance).

Flip a coin. If heads, your opponent discards the top from his or her deck.

Does 10 damage to each of your Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)