Cheapest priced copy (Duel Decks: Merfolk vs. Goblins): $0.59 at Card Kingdom, near mint, their price list as of .
Goblin Goon 
Creature — Goblin Mutant · 6/6 · Rare · Legions · #99
This creature can't attack unless you control more creatures than defending player.
This creature can't block unless you control more creatures than attacking player.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.59 to $64.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Merfolk vs. Goblins | 44 | Rare | $0.59 | — |
| Jumpstart | 326 | Rare | $0.69 | — |
| Legions | 99 | Rare | $7.99 | $64.99 |