Cheapest priced copy (Aether Revolt): $0.35 at Card Kingdom, near mint, their price list as of .
Implement of Ferocity 
Artifact · Common · Aether Revolt · #157
{G}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.
When this artifact is put into a graveyard from the battlefield, draw a card.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Aether Revolt | 157 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 9 February 2017An Implement’s last ability triggers no matter why it’s put into a graveyard from the battlefield. You don’t have to activate its first ability.
- 9 February 2017If you activate an Implement’s first ability, you’ll draw a card from its second ability before the first ability resolves. If the first ability has a target, you need a legal target to activate that ability, and you choose that target before seeing what card you’ll draw.