La Chanson de l'oignon is a Weiß Schwarz card from [TD]ガールズ＆パンツァー 無限軌道杯 GUP/W141-T26. 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. ([[bounce.gif]]: When this card triggers, you may choose one of your opponent's characters, and return it to your opponent's hand.)