Triggering an Elemental reaction grants a 8/10/12/14/16% Elemental DMG Bonus for 10s. Max 2 stacks.
In Game Description
A nautical chart featuring nearby currents and climates that somehow found its way into Liyue via foreign traders.
How to Get Mappa Mare?
Obtainable from forging. Here’s all materials you need to forge Mappa Mare:
Weapon Upgrade Materials
Here’s all material used to upgrade Mappa Mare: