After defeating an opponent, ATK is increased by 12/15/18/21/24% for 30s. This effect has a maximum of 3 stacks, and the duration of each stack is independent of the others.
In Game Description
A mysterious catalyst made of blackstone. It has an ominous crimson glow that seems to pulse in synchronization with the tremors from deep within the earth.
How to Get Blackcliff Agate?
Obtainable from Paimon Bargain Shop.
Weapon Upgrade Materials
Here’s all material used to upgrade Blackcliff Agate: