This Attribute Crystal increases earth attack attribute by 5 when bestowed on a weapon and earth defense attribute by 6 when bestowed on armor, thereby increasing wind resistance. The maximum attribute level is 6. Additionally, a maximum of three types of elemental defense attributes can be bestowed on armor, and opposite attributes cannot be bestowed together. Yin in the Town of Aden and Yang in the Town of Rune exchange the crystals for Earth Jewels.