A la Parallel City, the official Japanese Pokemon Twitter has revealed another dual-effect Stadium card – Reverse Valley – which will premiere in Rage of the Broken Sky. Thanks goes to Jake C. and Hannes S. for the translation!
Blue Side: Choose which way this card faces before you play it. This ↓ player’s Metal Pokemon take 10 less damage from his or her opponent’s Pokemon’s attacks.
Red Side: Choose which way this card faces before you play it. This ↓ player’s Darkness Pokemon’s attacks do 10 more damage to his or her opponent’s Active Pokemon.
This card stays in play when you play it. Discard this card if another Stadium card comes into play. If another card with the same name is in play, you can’t play this card.