Juuri valued strength in fortitude and perseverance. She would share her power willingly with those who pass her trial: defeating a Fossil Cryptic. If additional creatures challenge simultaneously, an additional Earth Spark is added for each ally. Upon their defeat, she would reach out to those who persevered, granting them the power of a Primordial Shard of Earth from her core.
Successful attribution of her power leads to her stirring: she would push up against the earthen plate above and flex even further, leading to earthquakes in the ground below and above and allowing for a deluge of rock slides. In Al'tehrun, this would lead to extreme seismic activity: increased tremors, unpredictable fissures forming, and unstable conditions in Underground places like caves (namely the caves of the Stone Giants of the western Isles of Reus, for their proximity).