成長を見守るプロデューサー is a Weiß Schwarz card from 劇場版『THE IDOLM@STER MOVIE 輝きの向こう側へ！』 IM/S30-019. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【CONT】 If there is a marker under this card, this card gains 『【CONT】 SUPPORT All your 《音楽》 Characters in front of this card get +2000 Power.』. 【ACT】 ［Place this card into Memory］ At the beginning of your next Draw Phase, choose 1 「成長を見守るプロデューサー」 from your Memory, place it into any slot on Stage, place the top card of your Deck under that Character as a marker.
This card was printed in Japanese only; the English text above is an unofficial community translation.