Rex was still hell-bent on getting rid of the Invincible Apparition.
He was perfectly fine without the Invincible Apparition all this time so he doesn't need it.
During the first time the Invincible Apparition took control, he did a lot of things that he wasn't proud of, and allowing that to happen for the second time… Rex wasn't sure. Instead of taking the risk—that might not give any result, it's better to avoid it.
But he couldn't exactly avoid the Invincible Apparition now and he understands the danger of it.
"If you're still stubborn, I'll take control by force!"
As soon as Rex heard that, his senses overridden the pain from the Gradual Penalty.
Rex snapped his head towards the Invincible Apparition and saw him vanish—in an instant from where he stood. Such a sight spooked him and without warning, his hand shot to his face. A painful throb stung his mind, causing him to grip his face tightly.
