Bismarck Card

Bismarck Card is an epic Triple Triad card.

Source
Bismarck Cards can be obtained as a drop in a duty or purchased from vendors.

Duties
Bismarck Cards can be obtained as a drop from the following duties:
 * The Limitless Blue (Hard)
 * The Limitless Blue (Extreme)

Vendors
Bismarck Cards can be obtained during the Moogle Treasure Trove event by exchanging 7 with the following vendors:
 * Itinerant Moogle