Cheapest priced copy (Marvel Super Heroes): $0.49 at Card Kingdom, near mint, their price list as of .
The Sentry, Golden Guardian 
Legendary Creature — Human Hero · 5/5 · Rare · Marvel Super Heroes · #358
Flying, vigilance, indestructible
When The Sentry enters, target opponent creates The Void, a legendary 5/5 black Horror Villain creature token with flying, indestructible, and "The Void attacks each combat if able."
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.49 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes | 35 | Rare | $0.49 | $0.79 |
| Marvel Super Heroes | 358 | Rare | $1.29 | $2.49 |