Cheapest priced copy (Forgotten Realms Commander): $0.99 at Card Kingdom, near mint, their price list as of .
Holy Avenger 
Artifact — Equipment · Rare · Forgotten Realms Commander · #275
Equipped creature has double strike.
Whenever equipped creature deals combat damage, you may put an Aura card from your hand onto the battlefield attached to it.
Equip {2}{W}
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.99 to $1.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Forgotten Realms Commander | 6 | Rare | $0.99 | — |
| Forgotten Realms Commander | 275 | Rare | $1.79 | — |
One ruling from Wizards of the Coast
- 23 July 2021You may put an Aura card onto the battlefield attached to the equipped creature if it could legally be attached to that creature.