From Granblue Fantasy Wiki
Satin Feather is a light feather that is soft to the touch. It is a normal quest treasure from Port Breeze Archipelago.
|Buy various items from the Treasure shop||5-15|
|Buy Peridot Carbuncle Treasure shopsummon from the||30|
|Upgrade Revenant Weapons (step 1)||300|
|Obtain Ring of Raphael (SR)||5|
|Uncap Ring of Raphael (SR) to 1★||20|