Cheapest priced copy (War of the Spark): $0.35 at Card Kingdom, near mint, their price list as of .
Duskmantle Operative 
Creature — Human Rogue · 2/2 · Common · War of the Spark · #88
This creature can't be blocked by creatures with power 4 or greater.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| War of the Spark | 88 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 3 May 2019Once a creature with power 3 or less has blocked this creature, changing the power of the blocking creature won’t cause this creature to become unblocked.