All martial arts in the world attest to speed being invincible.
The concept is simple, yet achieving this is not easy.
Speed is absolute, while fast and slow are relative.
Zhang Chi, relying on the movement skills taught by Gu Youyou, managed to infuriate the Black Tortoise with its high blood pressure soaring, eventually causing even the snake head to abandon Chen Runyu to join the attack.
Zhang Chi attempted to dodge the snake head's attacks like he was facing vines in the forest, using high speed to cause the enemy to fall to their own tactics.
That approach could work, but the blood of the Black Tortoise and the vine demons in the forest were not the same.
The snake head and the tortoise's head are one entity, akin to a man's left and right arms, making the task of getting them to fight each other extraordinarily difficult.
Moreover, under the combined assault, Zhang Chi's dodging space was greatly compressed.