Cheapest priced copy (Hour of Devastation): $0.69 at Card Kingdom, near mint, their price list as of .
Bontu's Last Reckoning 
Sorcery · Rare · Hour of Devastation · #60
Destroy all creatures. Lands you control don't untap during your next untap step.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.69 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Hour of Devastation | 60 | Rare | $0.69 | $3.49 |
| Hour of Devastation Promos | 60s | Rare | — | $3.49 |
2 rulings from Wizards of the Coast
- 14 July 2017No lands that you control will untap during your next untap step, even lands that aren’t tapped as this spell resolves. This includes lands that enter the battlefield after this spell resolves.
- 14 July 2017If more than one spell says that lands you control don’t untap during your next untap step, the effects will all wear off during that untap step. You’ll untap lands you control during your untap step after that one.