Cheapest priced copy (The List): $0.35 at Card Kingdom, near mint, their price list as of .
Jungleborn Pioneer 
Creature — Merfolk Scout · 2/2 · Common · Rivals of Ixalan · #137
When this creature enters, create a 1/1 blue Merfolk creature token with hexproof. (It can't be the target of spells or abilities your opponents control.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | RIX-137 | Common | $0.35 | — |
| Rivals of Ixalan | 137 | Common | $0.35 | $0.99 |