Cheapest priced copy (Edge of Eternities Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Gavel of the Righteous 
Artifact — Equipment · Rare · New Capenna Commander · #183
At the beginning of combat on your turn, put a charge counter on this Equipment.
Equipped creature gets +1/+1 for each counter on this Equipment.
As long as this Equipment has four or more counters on it, equipped creature has double strike.
Equip—Pay {3} or remove a counter from this Equipment.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.49 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities Commander | 55 | Rare | $0.49 | — |
| New Capenna Commander | 83 | Rare | $0.49 | — |
| New Capenna Commander | 183 | Rare | $2.29 | — |
| New Capenna Commander Promos | 83p | Rare | — | $10.99 |