Mysterious Fortune Card

Mysterious Fortune Cards are unread Fortune Cards produced by inscription.

Source
This item is created with Inscription (450); taught by trainers.

Cooking

 * Fortune Cookie

Expected value
The blog World of Warcraft Fortunes is collecting data on the outcomes of reading Mysterious Fortune Cards. The table summarizes the results of 2402 read Fortunes.

From the data—which does not yet include a Fortune—the average value of a Fortune is. The long-term expected value of an unread Fortune thus depends primarily on the drop rate of the Fortune:
 * 1 in 10000 drop rate → average.
 * 1 in  5000 drop rate →  average.
 * 1 in  2000 drop rate →  average.