Indigo Plateau - 86/102 - Uncommon from HS Triumphant, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Card Text:
  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.
  Each Pokemon LEGEND in play (both yours and your opponent's) gets +30 HP.