Cheapest priced copy (Edge of Eternities): $0.35 at Card Kingdom, near mint, their price list as of .
Tractor Beam 
Enchantment — Aura · Uncommon · Edge of Eternities · #82
Enchant creature or Spacecraft
When this Aura enters, tap enchanted permanent.
You control enchanted permanent.
Enchanted permanent doesn't untap during its controller's untap step.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 82 | Uncommon | $0.35 | $0.49 |