Cheapest priced copy (Champions of Kamigawa): $9.99 at Card Kingdom, near mint, their price list as of .
Uba Mask 
Artifact · Rare · Champions of Kamigawa · #272
If a player would draw a card, that player exiles that card face up instead.
Each player may play lands and cast spells from among cards they exiled with this artifact this turn.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $9.99 to $49.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Champions of Kamigawa | 272 | Rare | $9.99 | $49.99 |
2 rulings from Wizards of the Coast
- 1 December 2004You can’t play cards you exiled with Uba Mask on previous turns.
- 1 December 2004Any cards you don’t play just remain exiled when the turn ends.