Through May 18th, smartphone RPG Fate/Grand Order is running a Fate/Accel Zero Order. Fate/stay night prequel light novel Fate/Zero writer Gen Urobuchi is back to provide the scenario which brings in the adult Iskandar Rider for a limited time (the game previously had a child version - and an adult take on Waver, sortof) along with some new takes on major figures from the series.
3★ Assassin Hundred-Faced Hassan
illustraded by Task Ohna (Fate/stay night: Heaven's Feel manga, Hyouka manga), voiced by Abe Akina
4★ Assassin EMIYA
illustrated by AKIRA, voiced by Rikiya Koyama
5★ Rider Alexander The Great/Iskandar
Illustrated by Takeuchi Takashi, illustrated by Ohtsuka Akio
Angra Mainyu Avenger from Fate/hollow ataraxia
1st No-Star Servant in the game and can only be obtained through FP Summoning.
illustrated by Nekotawawa, voiced by Terashima Takuma
4★ Caster Irisviel (Dress of Heaven) - award for completing event
illustrated by Shimaudon, voiced by Ohara Sayaka
Event Craft Essences
Final Destination- features Waver Velvet and his Servant Iskandar, Rider Servant from Fate/Zero.
Before Awakening - features Kirei Kotomine, the overseer of the fifth Holy Grail War
Volumen Hydrargyrum - illustrated by pako, Kayneth El-Melloi Archibald, the Master of Diarmuid Ua Duibhne in Fate/Zero
Young Maiden Ignorant of Love - rt features Nuada-Re Sophia-Ri, wife of Kayneth El-Melloi Archibald.
Self Geass Scroll
New Master costume
The Servant in your team will increase the drops for the Class Insignias they're strong against, i.e. Saber → Lancer insignias #FateGO— Fate/GO English (@fgo_english) April 26, 2016
Note: Iskandar will NOT be added to the story gacha after the event. #FateGO— Fate/GO English (@fgo_english) April 26, 2016