領主見習い クーベル is a Weiß Schwarz card from DOG DAYS' DD/WE17-09. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 ［① Place 1 card to Waiting Room from Hand］ When 「ガーネットスパーク」 is placed on your Climax Slot, you may pay the cost. If you did, during that turn, this card gets +1000 Power and gains the following ability. 『【CONT】 When this card attacks, choose 1 of your opponent's Back Row Character. You may front attack that card as the defending character.』
This card was printed in Japanese only; the English text above is an unofficial community translation.