Cheapest priced copy (Commander 2019): $0.49 at Card Kingdom, near mint, their price list as of .
Soul Foundry 
Artifact · Rare · Commander 2019 · #223
Imprint — When this artifact enters, you may exile a creature card from your hand.
{X}, {T}: Create a token that's a copy of the exiled card. X is the mana value of that card.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.49 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2019 | 223 | Rare | $0.49 | — |
| Mirrodin | 246 | Rare | $0.99 | $8.99 |
4 rulings from Wizards of the Coast
- 4 October 2004You do not get a chance to pay any optional costs, such as Kicker, on the imprinted card.
- 1 December 2004The token is an exact copy in every way, except that it's a token, not a card.
- 1 December 2004Soul Foundry puts a token copy of the imprinted card onto the battlefield. The token is put onto the battlefield, not cast.
- 1 December 2004Most creature tokens have no mana cost and a mana value of 0, but a creature token put onto the battlefield by Soul Foundry has the same mana cost and mana value as the card it copies.