Cheapest priced copy (Odyssey): $1.79 at Card Kingdom, near mint, their price list as of .
Thought Devourer 
Creature — Beast · 4/4 · Rare · Odyssey · #105
Flying
Your maximum hand size is reduced by four.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $1.79 to $9.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Odyssey | 105 | Rare | $1.79 | $9.99 |
One ruling from Wizards of the Coast
- 1 October 2009If multiple effects modify your hand size, apply them in timestamp order. For example, if you are affected by Cursed Rack (an artifact that sets a player's maximum hand size to four) and then put Thought Devourer onto the battlefield, your maximum hand size would be zero. However, if those permanents entered in the opposite order, your maximum hand size would be four.