“兄としての務め”士郎 is a Weiß Schwarz card from Fate/kaleid liner プリズマ☆イリヤ ドライ!! PI/SE31-03. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 ［Place 1 card from Hand into Waiting Room］ When this card is placed on Stage from Hand, you may pay the Cost. If you did, choose 1 of your opponent's Characters in the Front Row with Level 3 or lower, place it into Waiting Room. 【AUTO】 【CXCOMBO】 RESONANCE ［① Reveal 1 Character with 「クロ」 in its name from Hand］ This ability can only be activated up to 1 time each turn. When the Damage dealt by this card is cancelled, if 「振り絞る力」 is in your Climax slot, you may pay the Cost. If you did, deal X Damage to your opponent. X is equals to the Soul of the Character revealed by this ability's Cost. (Damage can be cancelled)
This card was printed in Japanese only; the English text above is an unofficial community translation.