Qi Tian was temporarily unsure of what the second change meant, but the first change alone made him ecstatic. The size of the multiplier boost of the Heavenly Dao Engine directly affected how much Qi Tian's combat power could soar, and it was not only used frequently in battle, but also during his cultivation. He had always wanted to figure out what could increase the number of turbine blades on the Heavenly Dao Engine, but he had never been able to find a clear lead. Now, there was something in these stone bullets that could further increase the turbine blades of the Heavenly Dao Engine. So, to Qi Tian, these stone bullets were strategic materials that he must obtain at all costs. If possible, he also needed to find out where these stone bullets came from, preferably visit the source of the stone bullets, and figure out why these stone bullets fragments could enhance the Heavenly Dao Engine.