Cheapest priced copy (Lorwyn): $0.79 at Card Kingdom, near mint, their price list as of .
Colfenor's Plans 
Enchantment · Rare · Lorwyn · #106
When this enchantment enters, exile the top seven cards of your library face down.
You may look at the cards exiled with this enchantment, and you may play lands and cast spells from among those cards.
Skip your draw step.
You can't cast more than one spell each turn.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.79 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn | 106 | Rare | $0.79 | $6.99 |
4 rulings from Wizards of the Coast
- 1 October 2007Playing a card exiled with Colfenor's Plans follows all the normal rules for playing that card. You must pay its costs, and you must follow all timing restrictions, for example.
- 1 October 2007The turn you cast Colfenor's Plans, you have cast (at least) one spell that turn. After it enters and its last ability goes into effect, you can't cast any more spells that turn.
- 1 October 2007If an exiled card has morph, you may cast it face down.
- 15 April 2013If Colfenor's Plans leaves the battlefield, you can continue to look at cards exiled by it, but you can no longer play them.