The Power of Mountains and Rivers is a pair of arm armors.
In fact, arm armors are a special kind of weapon in "Amber Sword." Although warriors, mercenaries, monks, and monk soldiers all use them, compared to the latter two groups, they are not very common among warriors and mercenaries.
However, this does not stop Brand from being interested in the Power of Mountains and Rivers.
When it comes to the Divine Envoy "Eckmen," the first thing players think of should be the highly valued "Power of Mountains and Rivers" it drops, or the fully-powerful "Thunder Slash Sword." Of course, Brand doesn't even dream about the Thunder Slash Sword. As a Level 67 Great Divine Envoy, it possesses the necessary elemental power to crush their group with a mere move.