Cheapest priced copy (Urza's Saga): $0.59 at Card Kingdom, near mint, their price list as of .
Barrin's Codex 
Artifact — Book · Rare · Urza's Saga · #286
At the beginning of your upkeep, you may put a page counter on this artifact.
{4}, {T}, Sacrifice this artifact: Draw X cards, where X is the number of page counters on this artifact.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Urza's Saga | 286 | Rare | $0.59 | — |
One ruling from Wizards of the Coast
- 4 October 2004Adding a counter is optional. If you forget to add one during your upkeep, you cannot back up and add one later.