Cheapest priced copy (Battlebond): $0.35 at Card Kingdom, near mint, their price list as of .
Seer's Lantern 
Artifact · Common · Commander 2018 · #220
{T}: Add {C}.
{2}, {T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Battlebond | 245 | Common | $0.35 | $0.49 |
| Commander 2018 | 220 | Common | $0.35 | — |
| Commander Legends | 338 | Common | $0.35 | $0.49 |
| Oath of the Gatewatch | 165 | Common | $0.35 | $0.49 |