Cheapest priced copy (Bloomburrow): $0.35 at Card Kingdom, near mint, their price list as of .
Polliwallop 
Instant · Common · Bloomburrow · #189
Affinity for Frogs (This spell costs {1} less to cast for each Frog you control.)
Target creature you control deals damage equal to twice its power to target creature you don't control.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Bloomburrow | 189 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 26 July 2024If either creature is an illegal target as Polliwallop resolves, the creature you control won't deal damage.