C300 Heaven's Might
The first two moves of Hasa's Supreme Demon Overlord Fist had injured Chen Ren, who had triggered the dragon might of the entire Dragon Tomb.
And from Hasa's point of view, that attack should be Chen Ren's strongest attack, and he would not be able to use it again.
If he were to use his strongest attack, Chen Ren would not be able to withstand it no matter what.
Facing Hasa's powerful aura