Cheapest priced copy (War of the Spark): $0.35 at Card Kingdom, near mint, their price list as of .
Loxodon Sergeant 
Creature — Elephant Soldier · 3/3 · Common · War of the Spark · #21
Vigilance
When this creature enters, other creatures you control gain vigilance until end of turn.
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 | 21 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 3 May 2019Gaining vigilance any time after the moment you choose to attack with a creature won’t cause it to become untapped.
- 3 May 2019Loxodon Sergeant’s triggered ability affects only creatures you control at the time it resolves. Creatures you begin to control later in the turn won’t gain vigilance.