Cheapest priced copy (Commander 2014): $0.35 at Card Kingdom, near mint, their price list as of .
Loreseeker's Stone 
Artifact · Uncommon · Commander Legends · #320
{3}, {T}: Draw three cards. This ability costs {1} more to activate for each card in your hand.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2014 | 56 | Uncommon | $0.35 | — |
| Commander Anthology Volume II | 198 | Uncommon | $0.35 | — |
| Commander Anthology | 221 | Uncommon | $0.35 | — |
| Commander Legends | 320 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 10 November 2020Use the number of cards in your hand at the time you activate the ability (before drawing three cards) to determine how much mana to add to the activation cost.