Cheapest priced copy (Jumpstart 2022): $0.35 at Card Kingdom, near mint, their price list as of .
Phalanx Tactics 
Instant · Uncommon · Theros Beyond Death · #31
Target creature you control gets +2/+1 until end of turn. Each other creature you control gets +1/+1 until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 224 | Uncommon | $0.35 | — |
| Theros Beyond Death | 31 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 24 January 2020If the target creature is an illegal target by the time Phalanx Tactics tries to resolve, the spell won’t resolve. No creatures get +1/+1.