Cheapest priced copy (Mystery Booster 2): $2.99 at Card Kingdom, near mint, their price list as of .
Seedtime 
Instant · Rare · Judgment · #130
Cast this spell only during your turn.
Take an extra turn after this one if an opponent cast a blue spell this turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $2.99 to $179.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Judgment | 130 | Rare | $10.99 | $179.99 |
| Mystery Booster 2 | 73 | Rare | $2.99 | — |
One ruling from Wizards of the Coast
- 4 October 2004You only get an extra turn if an opponent cast a blue spell this turn prior to this spell resolving. Note that "casting" a spell only requires it to be announced, so an unresolved spell still counts as having been cast.