The watching Xi Yanmo was shocked. He remembered that Si Lingle was Water and Wood Dual Spirit Roots. How could Thunder Magic be wielded so quickly and smoothly?
Xi Yanmo himself had a Mutated Thunder Spirit Root, and casting Water Magic was significantly slower for him because he needed to convert Thunder Spiritual Energy into Water Spiritual Energy, a process that was very slow.
Therefore, in this era, most cultivators practiced spells that matched their own Spirit Roots.
Rarely would anyone learn spells that didn't match their Spirit Roots.
Si Lingle quickly broke through the first three layers of the Turtle Shell Defense Array. The sword from the Sword Pill had already flown out, forming a Sword Array suspended over the Turtle Shell Defense Array.
Tens of thousands of Sword Qi shot out.
