Even he, a Sage, found it hard to imagine.
Get stronger just by sleeping?
And with a divine ability focused on defense?
One that even an Innate Supreme Treasure could hardly break through?
Didn't that mean his Immortal Slaying Four Swords would be completely useless against Black Tortoise?
Sect Master Tongtian's expression had already darkened.
He was already imagining what it would be like to fight Black Tortoise.
The thought made his expression grow even darker.
In the vision, he was fighting Black Tortoise.
First, he brought out his usual magical treasure, the Green Ping Sword.
He unleashed a barrage of attacks against Black Tortoise.
But then Black Tortoise tossed out the tortoiseshell hanging from his ear.
It transformed into an unparalleled barrier.
His Green Ping Sword couldn't do a thing to his opponent.
With no other choice,
Sect Master Tongtian brought out some other magical treasures.
For example, the mysterious Heart Slaying Lock.
And the mysterious Purple Gold Hammer, among others.
Yet none of these magical treasures could do anything to Black Tortoise's shell.
In the end, with no other choice, he could only use the Immortal Slaying Four Swords.
But the Immortal Slaying Four Swords could only trap his opponent.
They still couldn't pierce through his shell.
Faced with this situation, the two could only settle into a stalemate.
He used the Immortal Slaying Four Swords to seal Black Tortoise away.
But he couldn't pose any threat to Black Tortoise.
In the end, Black Tortoise went to sleep inside the formation.
Meanwhile, he had to keep the formation going.
Otherwise, Black Tortoise would break free.
Their battle thus became a war of attrition.
Black Tortoise slept and cultivated inside.
While outside, he could only helplessly maintain the formation.
Countless years later,
his magical power ran dry.
The