"Hah! In this new world's history, I will ensure you are the one being remembered as the villain!' Master returned. He was casting a spell.
When Jack's claws came, Master's body turned into liquid. The spell Master used was Liquid Form. It was similar to Jack's Ghost Form, but Ghost Form was only learnable by an Archmage.
Jack continued slashing, but all his slashes had no effect. His claws just went through the liquid. He even used Flame Strike, but the liquid resisted the heat. Just as he was invulnerable during Ghost Form, Master was the same.
Like Ghost Form, Master couldn't attack in this state. But using the power of God Mode, Master could cast spells. He used the already refreshed Extreme Teleportation. Jack's mana awakening-empowered void should have a pull that could stop even the Teleportation spell, but Master had God Mode, so their powers neutralized one another. The Extreme Teleportation brought Master far away from there.