Cheapest priced copy (Teenage Mutant Ninja Turtles Source Material): $3.99 at Card Kingdom, near mint, their price list as of .
Umezawa's Jitte 
Legendary Artifact — Equipment · Rare · Betrayers of Kamigawa · #163
Whenever equipped creature deals combat damage, put two charge counters on Umezawa's Jitte.
Remove a charge counter from Umezawa's Jitte: Choose one —
• Equipped creature gets +2/+2 until end of turn.
• Target creature gets -1/-1 until end of turn.
• You gain 2 life.
Equip {2}
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
7 printings · $3.99 to $199.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Betrayers of Kamigawa | 163 | Rare | $12.99 | $199.99 |
| Grand Prix Promos | 2010 | Rare | — | $23.99 |
| The List | BOK-163 | Rare | $8.99 | — |
| Teenage Mutant Ninja Turtles Source Material (Raph's Jitte) | 19 | Mythic | $3.99 | $8.99 |
| Secret Lair Drop | 1288 | Rare | $14.99 | $11.99 |
| Secret Lair Drop (Cloud's Buster Sword) | 1865 | Rare | $19.99 | $21.99 |
| From the Vault: Lore | 14 | Mythic | — | $10.99 |
5 rulings from Wizards of the Coast
- 1 February 2005If the Jitte is moved after the "+2/+2" mode is announced but before it resolves, the bonus is given to the creature that is equipped when the ability resolves.
- 1 February 2005The ability can be used any time Umezawa's Jitte's controller has priority — only the "target creature" choice has additional requirements. Choosing the "Equipped creature gets +2/+2 until end of turn" mode does nothing if the Jitte isn't equipped to a creature when the ability resolves.
- 1 February 2005If the "target creature gets -1/-1 until end of turn" mode is chosen, the target creature must also be announced.
- 1 February 2005Umezawa's Jitte's activated ability generates a modal choice. The choice is made when the ability is activated.
- 1 February 2005If the Jitte leaves the battlefield after the "+2/+2" mode is announced but before it resolves, the bonus is given to the creature that was most recently equipped once the ability resolves.