生態調査
Biological Research is a Weiß Schwarz card from Attack on Titan AOT/S35-E051. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
Look at up to four cards from the top of your deck, choose up to one 《Corps》 character from among them, reveal it to your opponent, and put it into your hand. Put the rest into your waiting room.