Cheapest priced copy (Wilds of Eldraine): $0.35 at Card Kingdom, near mint, their price list as of .
Plunge into Winter 
Instant · Common · Wilds of Eldraine · #22
Tap up to one target creature. Scry 1, then draw a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Wilds of Eldraine | 22 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 September 2023If the target is already tapped at the time Plunge into Winter resolves, you'll still scry 1 and draw a card.
- 1 September 2023You 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.