Active: February 2, 2017 7:00 AM to February 15, 2017 at 6:59 AM UTC.
Summoning Focus
To celebrate the release of Fire Emblem Heroes, Summoning Focus: Deep Devotion and Legendary Heroes were active. These were the Heroes featured:
From Mystery of the Emblem:
From Awakening:
From The Binding Blade:
From The Blazing Blade:
From Fates:
App-Release Bonus
During the event a special daily log-in bonus of 2 Orbs 
was made available.
February 14 Announcement
The App-Release Bonus period was extended to March 14, 2017 at 6:59 AM UTC.