A/N: Yes, Ken's ability is essentially that of the Blue Mage of Final Fantasy. And the last last ability referred to here is taken from the moveset. So Disclaimer, I don't own anything Final Fantasy related!
Background: Ken can learn and copy abilities of others depending on the ability. And every single resident of Zenkyoshi keeps a Digigear on them.
No one could understand why Ken was refusing straight out to show them some of his new abilities he had just learned.
"They're just... weird," he would say awkwardly, and then change the subject.
Finally, Yolei and Davis just took it upon themselves to figure out why Ken was being so secretive and literally dragged him to one of the training areas to confront him.
"Come on Ken, just because something's 'weird' doesn't mean you can't show it to us who've been living with you for how long?" Yolei argued, letting the boy drop to the grass.
Ken rubbed his arms, inwardly regretting his decision to teach Yolei martial arts and be her regular sparring partner, as she had known all of his regular combat moves and tricks and how to get past them. "I'm serious, they're just weird and I don't know if I should use them in the first place," he tried to reason with her.
He mostly succeeded in giving her a helpless look, which resulted in her exasperated groan.
Davis frowned. "Well, why don't you just show us and we can judge that? We're the only ones here, and the closest person to us is..." he checked his Digigear. "Gabumon, and he's still way over at the lake."
Ken looked at Yolei and Davis. "I really don't know if they're appropriate," he said with sigh.
"We don't care, just do it!"
With a frustrated groan, he turned, targeted a nearby rock, and opened his mouth.
Roughly five seconds later, the rock was black and scorched.
Both Yolei and Davis were staring with open mouths. "Ken, were you just breathing fire?" Yolei asked incredulously but with a smile.
He nodded grimly. "I told you it was weird."
Davis on the other hand, had a sort of goofy grin on his face. "Dude, how did you learn that?!" he asked with excitement rising in his whole demeanor.
"The same way I learn the rest of my abilities," Ken rolled his eyes. "By having them done to me."
"So sometime during one of our battles something flamed you in the face?"
"Essentially, yes."
"What are you so worried about, that ability is cool! You should use it against Tai just to see his reaction!"
"Ken," Yolei interrupted. "What was the other ability you didn't want to show us?"
He looked at her and vigorously shook his head. "No, I am not doing that one. I remember how I learned that and what happened to the monster right afterwards."
"Then why don't you tell us what it is?" she asked, a little bit of an edge in her voice.
Ken looked at her straight in the eye. "I would describe it as self destructing."
There was an awkward, pregnant pause.
"Okay, yeah, don't show us that one," she responded, a disturbed look on her face.