Biological Research - AOT/S35-E051 - U Tweet Near Mint, 7 In stock $0.40 Details Card Name: Biological Research Card Number: AOT/S35-E051 Card Text: 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. Color: Green Cost: 0 Level: 1 Rarity: U Side: S Type: Event