Cheapest priced copy (Tempest): $0.69 at Card Kingdom, near mint, their price list as of .
Spirit Mirror 
Enchantment · Rare · Tempest · #48
At the beginning of your upkeep, if there are no Reflection tokens on the battlefield, create a 2/2 white Reflection creature token.
{0}: Destroy target Reflection.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tempest | 48 | Rare | $0.69 | — |
One ruling from Wizards of the Coast
- 4 October 2004It checks if there are any Reflection tokens on the battlefield at the beginning of upkeep, and if there are it will not trigger at all. It will check again on resolution and will do nothing if a Reflection is on the battlefield at that time.