Cheapest priced copy (The Brothers' War): $0.35 at Card Kingdom, near mint, their price list as of .
Arms Race 
Enchantment · Uncommon · The Brothers' War · #126
{3}{R}: You may put an artifact card from your hand onto the battlefield. That artifact gains haste. Sacrifice it at the beginning of the next end step.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War | 126 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 14 October 2022You sacrifice the artifact only if you still control it at the beginning of the next end step. If that artifact has left the battlefield, even if it later came back, you don't sacrifice it.