Cheapest priced copy (Born of the Gods): $0.99 at Card Kingdom, near mint, their price list as of .
Spirit of the Labyrinth 
Enchantment Creature — Spirit · 3/1 · Rare · Mystery Booster 2 · #20
Each player can't draw more than one card each turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.99 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Born of the Gods | 27 | Rare | $0.99 | $5.99 |
| Mystery Booster 2 | 20 | Rare | $0.99Out of stock | — |
| The List | BNG-27 | Rare | $1.29 | — |
4 rulings from Wizards of the Coast
- 1 February 2014If you draw a card, and then Spirit of the Labyrinth enters the battlefield, you won't be able to draw more cards that turn.
- 1 February 2014If you haven't drawn any cards in a turn, and a spell or ability would cause you to draw multiple cards, you'll just draw one card.
- 1 February 2014You can draw a maximum of one card on each player's turn. Subsequent card draws are ignored.
- 1 February 2014If a replacement effect would try to replace a card that you can't draw, that effect can't apply.