DEF is increased by 28/35/42/49/56%. Normal and Charged Attack DMG is increased by 40/50/60/70/80% of DEF.
In Game Description
According to it’s previous owner, this weapon is the “Mighty Redhorn Stoic Stonethreshing Gilded Goldcrushing Lion Lord” that can send any monster packing with it’s tail between it’s legs.
How to Get Redhorn Stonethresher
Can be obtained from exclusive weapon banner during second part of Genshin Impact 2.3.
Weapon Upgrade Materials
Here’s all material required to upgrade Redhorn Stonethresher: