Fire Emblem 0 (Cipher): Glorious Twinstrike (赫赫たる双撃, Kakukaku-taru Sōgeki lit. Glorious Double Attack) is the eleventh booster pack released for the trading card game Fire Emblem 0 (Cipher). It was released by Nintendo on December 7, 2017 in Japan.
The key art is illustrated by Sachiko Wada, Aoji, and lack. The characters for this series are taken from Fire Emblem: The Sacred Stones, Fire Emblem Echoes: Shadows of Valentia, and Fire Emblem Warriors.
- Includes 101 cards and 8 alternate foil prints (SR+, R+) and one secret rare (ST+X).
- 99 out of the 101 the cards are new (Eirika / Ephraim's Cost 1 are reprinted from Series 10 where they were the Booster Box Promos).
- Each sealed box comes with 2 of 2 promotional cards - (Ephraim and Eirika). One of the promotional cards in the box will be a foil variant, and the other will be a standard version.
Fire Emblem: The Sacred Stones 
Fire Emblem Echoes: Shadows of Valentia
Fire Emblem Warriors
See main article: Card List