Cheapest priced copy (Odyssey): $0.35 at Card Kingdom, near mint, their price list as of .
Think Tank 
Enchantment · Uncommon · Odyssey · #104
At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Odyssey | 104 | Uncommon | $0.35 | $2.49 |