Cheapest priced copy (Marvel Super Heroes): $0.35 at Card Kingdom, near mint, their price list as of .
Kree Sentinel 
Artifact Creature — Kree Robot Villain · 5/5 · Common · Marvel Super Heroes · #141
Reach
Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Marvel Super Heroes | 141 | Common | $0.35 | $0.49 |