"Download the Twin Sword Dance Combination Pack (Anniversary DLC) to change your weapon skin and acquire stat-boosting accessories. These include the following:
Weapon skins:
Xuan-Yuan Sword of Han - Taishi Zhao
Mo Heng Clockwork Arm - Taishi Xiang
Yu's Merciful Dao - Chu Hong
Accessories:
Kongtong Seal - Taishi Zhao
Leaf Spirit Incense - Taishi Xiang
Xia's Gourd - Chu Hong

Weapon skin can be changed in the appearance column in the character menu. Accessories can offer a certain amount of stat boosts.

*Please note: You must have the base game "Xuan Yuan Sword 7" in order for the DLC to work."