The moment this doubt arose, its eyes trembled, and it immediately understood why its spiritual power had inexplicably flowed in reverse whenever it fought Yan Siyi, who wielded the Mandarin Duck Fire Cloud Pot.
This flood dragon was Mo Ye Old Water Flood Dragon, who, a hundred years ago, when the Black Flood Dragon Lake Flood Dragon Race had first emerged, had led a group of Golden Core Demon Kings deep into the heartland of Yan Kingdom to wreak havoc.
Back then, Ling Pengyun and the Dragon Abyss Flood Dragon King of the White Shadow Secret Realm had joined forces to beat it up, and Ling Pengyun had even snatched away the only inferior-grade Natal Spirit Treasure Prototype it possessed, the "Illusory Flood Dragon Banner."
It was also then that Ling Pengyun had forced it to swear a Heavenly Dao Oath: it could never, by any means, take revenge upon the Ling Clan or harm Ling Clan cultivators for the rest of its life.
Even to this day, it had yet to dissolve that Heavenly Dao Oath. It was simply far too difficult.
At the very least, it would require a Quasi Fourth Rank or higher karma-shielding Spirit Talisman to dissolve it.
Although it was confident it could obtain such a spiritual object from its clan, the cost was simply too great.
The Ling Clan was not its mortal enemy. So long as it did not provoke the Ling Clan, this Heavenly Dao Oath would not backlash against it. Thus, it had always been too lazy to spend resources dissolving that oath from back then.
And now that it had fought Yan Siyi, it had naturally triggered the Heavenly Dao Oath.
This sent a chill down Mo Ye Old Water Flood Dragon's spine.
If that strike just now had killed