STEREOPHONIC ISOTONIC ロコ is a Weiß Schwarz card from プレミアムブースター アイドルマスター ミリオンライブ！ IMS/SE55-61. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this is placed on stage from hand, choose 1 of the following 2 effects and resolve it, a) "Your opponent sends all of their Stock to their deck and shuffles their deck, then puts an equal number of cards from the top of their deck into Stock." b) "You may mill 4. If you do, deal X damage to your opponent. X is equal to the number of CXes milled."
This card was printed in Japanese only; the English text above is an unofficial community translation.