Cheapest priced copy (Double Masters): $0.49 at Card Kingdom, near mint, their price list as of .
Ion Storm 
Enchantment · Rare · March of the Machine Commander · #286
{1}{R}, Remove a +1/+1 counter or a charge counter from a permanent you control: This enchantment deals 2 damage to any target.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 132 | Rare | $0.49 | $0.49 |
| Fifth Dawn | 68 | Rare | $0.49 | $0.99 |
| March of the Machine Commander | 286 | Rare | $0.49 | — |