Cheapest priced copy (GRN Guild Kit): $0.49 at Card Kingdom, near mint, their price list as of .
Hypersonic Dragon 
Creature — Dragon · 4/4 · Rare · Return to Ravnica · #170
Flying, haste
You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ravnica: Clue Edition | 196 | Rare | $0.59 | — |
| GRN Guild Kit | 39 | Rare | $0.49 | — |
| Iconic Masters | 201 | Rare | $0.49 | $0.79 |
| Return to Ravnica Promos | 170★ | Rare | — | $0.59 |
| Return to Ravnica | 170 | Rare | $0.49 | $0.49 |
2 rulings from Wizards of the Coast
- 17 November 2017Hypersonic Dragon’s last ability has no effect on abilities that you can activate “any time you could cast a sorcery.”
- 17 November 2017Hypersonic Dragon’s last ability applies to sorcery cards in any zone, provided something is allowing you to cast them. For example, you could cast a sorcery with flashback as though it had flash.