A factory sealed Pokémon TCG XY Base Set booster box, the English expansion that opened the XY series and brought Mega Evolution to the card game. A foundational display for Kalos-era collectors.

• Set: XY Base Set (XY)
• Series: XY, English
• Contents: 36 sealed booster packs, 10 cards per pack
• Set size: 146 cards
• Featured: First Mega Evolution cards, Xerneas and Yveltal