At this moment, Xu Hei's Dragon Soul trembled violently, casting a shadow behind him that mirrored his form exactly.

This was the dragon clan immortal spell, Nine Dragons Soul Saint Form, which Xu Hei acquired from the Demon God Cauldron after breaking through the Tribulation Crossing stage. It allowed him to replicate all his techniques, effectively doubling his combat power.

The cost was the burning of his Dragon Soul, but after consuming two immortal pills in succession, Xu Hei's primordial spirit recovery rate matched the burning speed, rendering it painless.

"Immortal Spell, Yellow Spring Underworld Wind!"