Frostbearer is 4 star catalyst with ATK substats. You can forge this catalyst in your friendly local blacksmith, require 1x Northlander catalyst billet, 50x crystal
Royal Greatsword is 4 star claymore with ATK substats. This weapon can be obtained from Paimon Bargain Shop for 24 masterless starglitter. An old greatsword
Luxurious Sea Lord is 4 star claymore withATK substats. It’s DPS oriented claymore that only obtainable from past Moonchase Event in Liyue. Unfortunately we have
Akuoumaru is 4 star claymore with ATK substats. This weapon only obtainable from limited weapon banner and have effect to increase elemental damage burst, especially
