Cheapest priced copy (Adventures in the Forgotten Realms): $0.59 at Card Kingdom, near mint, their price list as of .
Leather Armor 
Artifact — Equipment · Common · Adventures in the Forgotten Realms · #248
Equipped creature gets +0/+1 and has ward {1}. (Whenever equipped creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)
Equip {0}. Activate only once each turn.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.59 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Adventures in the Forgotten Realms | 248 | Common | $0.59 | $0.79 |
| The List | AFR-248 | Common | $0.69 | — |
One ruling from Wizards of the Coast
- 23 July 2021If a creature with ward is equipped with Leather Armor, becoming the target of a spell or ability an opponent controls will cause both ward abilities to trigger.