Quest Challenge Event
From Unofficial Fantasica Wiki
How it Works
In the Quest Challenge there are four levels: Easy, Medium, Hard, Inferno.
Each level has five quests with a 10-15 minute cooldown.
Clearing all the quests for a difficulty level earns you a reward.
Easy, Medium, and Hard are doable with a team of all 4★ units and allies.
Inferno will require 6★ allies, or a perfect composition of 5★ allies to clear.