Divine creatures often had extremely high magic immunity. Even though the bone piece had been stolen, the divine power accumulated over the years had also made the multi-headed evil snake's defense and vitality far beyond that of normal creatures.
When Xu Nan was choosing his spell, he had considered this point. This was why he abandoned the fireball spell he was most proficient in and chose the more direct and violent lava burst.
This spell was a relatively common spell in the evocation system that had both physical and magical attack effects.
In addition to the heavenly goose's coordination, Xu Nan was basically hitting a fixed target.
The multi-headed evil snake was furious, but it did not have much strength to resist.
Even though the celestial goose only had a pair of wings and a pair of feet, the six heads of the multi-headed evil snake were still tightly clenched by the celestial goose.
