Cheapest priced copy (Odyssey): $0.79 at Card Kingdom, near mint, their price list as of .
Unifying Theory 
Enchantment · Rare · Odyssey · #112
Whenever a player casts a spell, that player may pay {2}. If the player does, they draw a card.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.79 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Odyssey | 112 | Rare | $0.79 | $7.99 |