A Piece of Chocolate is a Weiß Schwarz card from Love Live! DX Vol.2 LL/EN-W02-E052. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 All of your characters get +1000 power and +1 soul. ([[stock.gif]]: When this card triggers, you may put the top card of your deck into your stock)