Cheapest priced copy (Invasion): $0.35 at Card Kingdom, near mint, their price list as of .
Slinking Serpent 
Creature — Serpent · 2/3 · Uncommon · Invasion · #274
Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Invasion | 274 | Uncommon | $0.35 | $0.99 |