Cheapest priced copy (Saviors of Kamigawa): $0.49 at Card Kingdom, near mint, their price list as of .
Aether Shockwave 
Instant · Uncommon · Saviors of Kamigawa · #1
Choose one —
• Tap all Spirits.
• Tap all non-Spirit creatures.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.49 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Salvat 2005 | C26 | Uncommon | — | — |
| Saviors of Kamigawa | 1 | Uncommon | $0.49 | $4.49 |
One ruling from Wizards of the Coast
- 1 June 2005You choose the mode on announcement.