Cheapest priced copy (Scars of Mirrodin): $2.29 at Card Kingdom, near mint, their price list as of .
Infiltration Lens 
Artifact — Equipment · Uncommon · Scars of Mirrodin · #167
Whenever equipped creature becomes blocked by a creature, you may draw two cards.
Equip {1}
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $2.29 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 777 | Uncommon | $2.79 | — |
| Scars of Mirrodin | 167 | Uncommon | $2.29 | $10.99 |
One ruling from Wizards of the Coast
- 1 January 2011If the equipped creature becomes blocked by multiple creatures, Infiltration Lens’s ability triggers that many times.