Blood and sweat have been put to use by Rex to learn the Brutal Impulse Moon Ability. But in the end, he still hasn't come close to mastering or even managing to use that skill, not even close. Learning the Brutal Impulse prove to be a hefty task in a matter of days or a week.
It would probably take a longer time for him to be able to use it properly.
At this current moment, his arm still exploded every time he tries to use the Brutal Impulse skill. But due to the adversity, he knows that if he managed to learn the skill then it would become the strongest skill in his arsenal.
Rex doesn't mind that he isn't able to learn the skill, it's just better if he can master it quickly.
Now that he realized that he wouldn't be able to learn the skill in a short amount of time, he decided to take a risk and visit Brigitta in the stronghold that she was guarding. She must be the one that took Kyran hostage.
