Cheapest priced copy (Jumpstart 2022): $0.35 at Card Kingdom, near mint, their price list as of .
Lumengrid Sentinel 
Creature — Human Wizard · 1/2 · Uncommon · Mirrodin · #40
Flying
Whenever an artifact you control enters, you may tap target permanent.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 317 | Uncommon | $0.35 | — |
| Mirrodin | 40 | Uncommon | $0.35 | $0.49 |