Cheapest priced copy (Guilds of Ravnica): $1.99 at Card Kingdom, near mint, their price list as of .
Electrostatic Field 
Creature — Wall · 0/4 · Uncommon · Outlaws of Thunder Junction Commander · #164
Defender
Whenever you cast an instant or sorcery spell, this creature deals 1 damage to each opponent.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $1.99 to $14.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Guilds of Ravnica | 97 | Uncommon | $1.99 | $14.99 |
| Outlaws of Thunder Junction Commander | 164 | Uncommon | $1.99Out of stock | — |
| The List | GRN-97 | Uncommon | $1.99 | — |
2 rulings from Wizards of the Coast
- 5 October 2018Electrostatic Field's triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
- 5 October 2018In a Two-Headed Giant game, Electrostatic Field's triggered ability causes the opposing team to lose 2 life.