C1634 The Violet Cloud Divine Arm
As long as the power of Han Feng's attack reached the level of threatening an Eighth Calamity True God, the Purple Black Fire would be able to devour the opponent's Divine Essence.
If the power unleashed was weaker than the Eighth Calamity True God, with the level of the Purple Black Fire, it would still be able to devour a portion.
This was even more so for an Eighth Calamity True God