Cheapest priced copy (Future Sight): $0.35 at Card Kingdom, near mint, their price list as of .
Whip-Spine Drake 
Creature — Drake · 3/3 · Common · Future Sight · #62
Flying
Morph {2}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Future Sight | 62 | Common | $0.35 | $0.49 |
| Time Spiral Remastered | 99 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 19 March 2021If Whip-Spine Drake is face down and blocked by a creature without flying, turning it face up won't cause it to become unblocked or stop the blocking creature from dealing combat damage to it.