Cheapest priced copy (Commander Masters): $0.99 at Card Kingdom, near mint, their price list as of .
Pillar of Origins 
Artifact · Uncommon · Commander Masters · #970
As this artifact enters, choose a creature type.
{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.99 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 970 | Uncommon | $0.99 | — |
| Ixalan | 241 | Uncommon | $0.99 | $3.49 |
One ruling from Wizards of the Coast
- 19 January 2018To choose a creature type, you must choose an existing creature type, such as Vampire or Knight. You can’t choose multiple creature types, such as “Vampire Knight.” Card types such as artifact can’t be chosen, nor can subtypes that aren’t creature types, such as Jace, Vehicle, or Treasure.