Cheapest priced copy (Innistrad: Double Feature): $0.35 at Card Kingdom, near mint, their price list as of .
Devious Cover-Up 
Instant · Common · Guilds of Ravnica · #35
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may shuffle up to four target cards from your graveyard into your library.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 48 | Common | $0.35 | $0.99 |
| Guilds of Ravnica | 35 | Common | $0.35 | $0.49 |
| Innistrad: Midnight Hunt | 48 | Common | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 5 October 2018You may target zero cards in your graveyard and still shuffle your library.
- 5 October 2018A spell that can't be countered is a legal target for Devious Cover-Up. The spell won't be countered when Devious Cover-Up resolves, but you'll still shuffle cards into your library.
- 5 October 2018Devious Cover-Up can't target itself at all. You can't try to counter it with itself and shuffle cards in, and you can't use its effect to shuffle itself into your library.