The game focuses almost exclusively on Double Battles , emphasizing tactical synergy and elemental matchups over brute force. Distinctive Features
In a departure from the first game, Shadow Pokémon in XD have unique move pools with the "Shadow" element, which is super effective against all non-shadow types.
Players must open these hearts through battle and care. A major quality-of-life upgrade from its predecessor was the Purification Chamber , which allowed for automatic purification.