บท 870: Calamity Lightning Waterfall (2)

After the coffin revealed its aura, the tribulation clouds above indeed rolled even more terrifyingly.

The thickness range swelled again.

In order to condense this lightning cloud, the concentration of spiritual qi that the entire Nine Provinces had been increasing seemed to have decreased greatly because of the expenditure.

Condensing this tribulation cloud consumed a lot of energy in the entire Nine Provinces World. It could be seen that this coffin was really not ordinary.

The Yin Burial Coffin was probably the first artifact to be upgraded to the level of an immortal artifact after the Cultivationless Age!

If it was the Yin Burial Coffin at the beginning, because the grade of the Bloodsucking Wood was too low, it was impossible to advance to an immortal artifact no matter what.

However, as Jiang Li walked, he had really invested too many precious things in the coffin.

It allowed the coffin to accumulate a deep foundation.