Cheapest priced copy (Throne of Eldraine): $0.79 at Card Kingdom, near mint, their price list as of .
Didn't Say Please 
Instant · Common · Throne of Eldraine · #42
Counter target spell. Its controller mills three cards.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.79 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Throne of Eldraine | 42 | Common | $0.79 | $0.99 |
One ruling from Wizards of the Coast
- 4 October 2019A spell that can't be countered is a legal target for Didn't Say Please. The spell won't be countered when Didn't Say Please resolves, but its controller still puts the top three cards of their library into their graveyard.