Cheapest priced copy (Odyssey): $0.69 at Card Kingdom, near mint, their price list as of .
Darkwater Egg 
Artifact · Uncommon · Odyssey · #299
{2}, {T}, Sacrifice this artifact: Add {U}{B}. Draw a card. (Activate only as an instant.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.69 to $11.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Odyssey | 299 | Uncommon | $0.69 | $11.99 |
One ruling from Wizards of the Coast
- 1 August 2008This is a mana ability, which means it can be activated as part of the process of casting a spell or activating another ability. If that happens you get the mana right away, but you don’t get to look at the drawn card until you have finished casting that spell or activating that ability.