DZ-BT15/101 C Argo Siren, Lipory

[AUTO]:When this card is discarded from hand during your turn, if you have a vanguard with "Argo Siren" in its card name, look at the top five cards of your deck, choose up to one non-sentinel <Mermaid> normal unit, reveal it and put it into hand, and shuffle the deck. If you revealed a card, choose a card from your hand, and discard it.