From the manufacturer:
Harness the powerful spark of Raichu-GX! With amazing power and amazing charm, Raichu brings the thunder wherever it goes! With this Shining Legends Special Collection, you get a full-art Raichu-GX as both a playable foil promo card and an awesome oversized card. You'll also get a foil promo card featuring Pikachu, plus 5 booster packs from the special Shining Legends expansion! Roll down that lightning-type road all the way to victory with Raichu and Pikachu!