Cheapest priced copy (Mirage): $2.99 at Card Kingdom, near mint, their price list as of .
Mist Dragon 
Creature — Dragon · 4/4 · Rare · Mirage · #79
{0}: This creature gains flying. (This effect lasts indefinitely.)
{0}: This creature loses flying. (This effect lasts indefinitely.)
{3}{U}{U}: This creature phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirage | 79 | Rare | $2.99 | — |