opus_the_living

This endgame setup pushes Tangtang's personal damage while keeping her support value intact. Brigand's Calling supplies the debuff that makes her a force multiplier, and the Bonekrusha set converts the Combo Skill she wants to open with into a damage boost for the Battle Skill that follows. LYNX Slab rounds out the pieces because its main-attribute scaling squeezes out slightly more value than a fully saturated Battle Skill DMG bonus. The result is a sub-DPS that applies Arts Susceptibility for the team while still hitting hard herself during the Waterspout window. Swap in Home Longing, Opus: The Living, or Long Road only if Brigand's Calling is unavailable and you accept the loss of team-wide amplification.

The early game build keeps things simple: pour Agility into Tangtang so her Whirlpool and Waterspout damage holds up while she levels. Opus: The Living is easy to acquire and adds Arts damage on top of the Agility it provides, making it the natural mid-progression weapon. Roving MSGR is used almost entirely for its large flat Agility bonus, which outperforms other accessible sets even though its set effect leans toward Physical DMG rather than her Cryo kit. This setup does not yet provide the team-wide Arts Susceptibility amplification that the endgame weapon brings, but it keeps her personal contribution respectable while you farm toward the better configuration.