Cheapest priced copy (The Brothers' War Retro Artifacts): $0.59 at Card Kingdom, near mint, their price list as of .
Sword of the Meek 
Artifact — Equipment · Uncommon · Future Sight · #165
Equipped creature gets +1/+2.
Equip {2}
Whenever a 1/1 creature you control enters, you may return this card from your graveyard to the battlefield, then attach it to that creature.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
6 printings · $0.59 to $10.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 299 | Rare | $0.79 | $0.99 |
| The Brothers' War Retro Artifacts | 59 | Rare | $0.59 | $0.99 |
| The Brothers' War Retro Artifacts | 122 | Rare | $1.29 | $3.49 |
| The Brothers' War Retro Artifacts | 122z | Rare | — | — |
| Future Sight | 165 | Uncommon | $0.79 | $10.99 |
| Mystery Booster 2 | 98 | Uncommon | $0.69 | — |
5 rulings from Wizards of the Coast
- 7 August 2020If a creature is entering the battlefield under your control, consider static abilities to determine whether its power and toughness are both 1. Spells, activated abilities, and triggered abilities can't be used to raise or lower the creature's power and toughness in time to have the last ability trigger or to stop it from triggering.
- 7 August 2020Any creature can be equipped with Sword of the Meek, not just 1/1 creatures.
- 7 August 2020Sword of the Meek's last ability triggers only if it's in your graveyard immediately after the 1/1 creature enters the battlefield.
- 7 August 2020Once the last ability has triggered, changing the power or toughness of the creature won't stop you from returning Sword of the Meek and attaching it to the creature.
- 7 August 2020If Sword of the Meek can't be attached to the creature that caused its last ability to trigger, most likely because that creature has left the battlefield, Sword of the Meek returns to the battlefield and remains unattached.