Cheapest priced copy (Onslaught): $0.35 at Card Kingdom, near mint, their price list as of .
Crown of Vigor 
Enchantment — Aura · Common · Onslaught · #253
Enchant creature
Enchanted creature gets +1/+1.
Sacrifice this Aura: Enchanted creature and other creatures that share a creature type with it get +1/+1 until end of turn.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Onslaught | 253 | Common | $0.35 | $0.49 |
| Salvat 2005 | B54 | Common | — | — |
| Salvat 2005 | D6 | Common | — | — |