インスタント
クリーチャー最大1体を対象とする。それをタップする。占術1を行う。その後、カード1枚を引く。
You can cast Plunge into Winter without a target just to scry 1 and draw a card. However, if you do choose a target, and that target is illegal at the time Plunge into Winter tries to resolve, the spell won't resolve and none of its effects will happen. You won't scry, and you won't draw a card.