Cheapest priced copy (Judgment): $0.35 at Card Kingdom, near mint, their price list as of .
Lost in Thought 
Enchantment — Aura · Common · Judgment · #45
Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated. Its controller may exile three cards from their graveyard for that player to ignore this effect until end of turn.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Judgment | 45 | Common | $0.35 | $0.99Out of stock |
2 rulings from Wizards of the Coast
- 4 October 2004You can take the “exile three cards” action any time you have priority without using the stack.
- 8 June 2016Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.