The following effect will trigger every 10s: The equipping character will gain 24/30/36/42/48% of their Elemental Mastery as bonus ATK for 12s, with nearby party members gaining 30% of this buff for the same duration. Multiple instances of this weapon can allow this buff to stack. This effect will still trigger even if the character is not on the field.
In Game Description
An ancient greatsword that gleams like the waters themselves. A thousand years of sand erosion has not dulled its unnaturally sharp edge one bit.
How to Get Makhaira Aquamarine?
Obtainable from limited weapon banner featuring Staff of the Scarlet Sands
Weapon Upgrade Materials
Here’s all material used to upgrade Makhaira Aquamarine: