Cheapest priced copy (Modern Masters 2017): $0.99 at Card Kingdom, near mint, their price list as of .
Sphinx's Revelation 
Instant · Mythic · Return to Ravnica · #200
You gain X life and draw X cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
9 printings · $0.99 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War Commander | 130 | Mythic | $1.29 | — |
| RNA Guild Kit | 21 | Mythic | $1.29 | — |
| Modern Masters 2017 | 187 | Mythic | $0.99 | $1.99 |
| The List | RVR-228 | Rare | $1.29 | — |
| Return to Ravnica | 200 | Mythic | $1.29 | $7.99 |
| Ravnica Remastered | 228 | Rare | $1.29 | $0.99 |
| Ravnica Remastered | 383 | Rare | $0.99 | $1.99 |
| Ravnica Remastered | 383z | Rare | — | — |
| Starter Commander Decks | 244 | Mythic | $0.99 | — |
One ruling from Wizards of the Coast
- 1 October 2012If the value chosen for X is larger than the number of cards left in your library, you'll lose the game the next time state-based actions are performed.