Cheapest priced copy (Portal Three Kingdoms): $9.49 at Card Kingdom, near mint, their price list as of .
Zodiac Snake 
Creature — Snake · 2/2 · Common · Portal Three Kingdoms · #99
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $9.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Portal Three Kingdoms | 99 | Common | $9.49 | — |