Cheapest priced copy (Duel Decks: Elves vs. Goblins): $0.35 at Card Kingdom, near mint, their price list as of .
Stonewood Invoker 
Creature — Elf Mutant · 2/2 · Common · Legions · #139
{7}{G}: This creature gets +5/+5 until end of turn.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
4 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Elves vs. Goblins | 11 | Common | $0.35 | — |
| Dominaria Remastered | 178 | Common | $0.35 | $0.49 |
| Duel Decks Anthology: Elves vs. Goblins | 11 | Common | $0.35 | — |
| Legions | 139 | Common | $0.35 | $0.79 |