Zhang San might be defeated by the White Tiger at any moment, and although he has already killed the Black Tortoise, the advantage that Zhou Tian holds is not that large. Therefore, what Zhou Tian needs to do now is to try to expand the battle results as much as possible. It doesn't matter who wins or loses between Zhang San and the White Tiger, as long as Zhou Tian kills the Azure Dragon, the outcome of their battle will become irrelevant to the final battle situation.
So, once he made the decision to attack, Zhou Tian naturally wouldn't hold anything back against the Azure Dragon. He directly used the Ability of the Teleportation Ring to appear in front of the Azure Dragon, and without waiting for any response, he thrust his sword toward it.