Cheapest priced copy (Commander 2016): $2.49 at Card Kingdom, near mint, their price list as of .
Empyrial Plate 
Artifact — Equipment · Rare · Mirrodin · #168
Equipped creature gets +1/+1 for each card in your hand.
Equip {2}
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $2.49 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2016 | 251 | Rare | $2.49 | — |
| Mirrodin | 168 | Rare | $2.49 | $11.99 |