Upon causing a Vaporize, Electro-Charged, Frozen, or a Hydro-infused Swirl reaction, increases ATK by 20/25/30/35/40% for 12 s.
In Game Description
A catalyst carved out of the hard jade from Jueyunjian north of Liyue. It is small, light, and durable.
How to Get Emerald Orb?
Obtainable from gacha, pretty common.
Weapon Upgrade Materials
Here’s all material used to upgrade Emerald Orb: