Cheapest priced copy (Mirrodin): $6.49 at Card Kingdom, near mint, their price list as of .
Scythe of the Wretched 
Artifact — Equipment · Rare · Mirrodin · #239
Equipped creature gets +2/+2.
Whenever a creature dealt damage by equipped creature this turn dies, return that card to the battlefield under your control. Attach this Equipment to that creature.
Equip {4}
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $6.49 to $16.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mirrodin | 239 | Rare | $6.49 | $16.99 |
3 rulings from Wizards of the Coast
- 1 December 2004The Scythe's ability triggers even if something other than the damage dealt by the equipped creature causes the creature to be put into a graveyard that turn.
- 1 December 2004If the card isn't a creature when it comes back onto the battlefield, then Scythe of the Wretched won't move onto it.
- 1 December 2004Scythe of the Wretched needs to equip your creature when the other creature goes to the graveyard for the ability to trigger, but it doesn't matter whether the Scythe equipped your creature when the damage was actually dealt.