Cheapest priced copy (The List): $3.99 at Card Kingdom, near mint, their price list as of .
Helm of Kaldra 
Legendary Artifact — Equipment · Rare · Fifth Dawn · #131
Equipped creature has first strike, trample, and haste.
{1}: If you control Equipment named Helm of Kaldra, Sword of Kaldra, and Shield of Kaldra, create Kaldra, a legendary 4/4 colorless Avatar creature token. Attach those Equipment to it.
Equip {2}
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $3.99 to $14.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Fifth Dawn | 131 | Rare | $4.99 | $14.99 |
| Fifth Dawn Promos | 131★ | Rare | — | $6.99 |
| The List | 5DN-131 | Rare | $3.99 | — |
3 rulings from Wizards of the Coast
- 1 December 2004The token isn’t put onto the battlefield unless you control all three Equipment when the ability resolves.
- 1 December 2004Helm of Kaldra is the third card in the Kaldra cycle. Sword of Kaldra was in the Mirrodin set. Shield of Kaldra was in the Darksteel set.
- 1 December 2004The token is named Kaldra, has the supertype legendary, and has creature type Avatar.