Before Clark returned, taking advantage of having some free time at home, Kara gained a deeper understanding and proficiency with the two new super abilities she had awakened.
Kara discovered that when she shrank to the size of an ant, her attack power became even more terrifying due to the heightened impact force and concentrated energy.
To put it simply, even if an ordinary person shrank to the size of an ant, their punch would be almost as powerful as a bullet, easily penetrating a person's body.
For someone like Kara, the results were exponentially more impressive.
If she didn't consciously control her strength to "protect" herself from causing unintentional destruction, even landing on the ground could trigger a significant earthquake, and a punch could effortlessly pierce through the earth.
On the other hand, growing larger increased her overall strength and durability, creating even more devastating power.
When smaller, her power was concentrated and precise—akin to a sniper rifle. When larger, it was widespread, similar to the destructive force of a missile.
For now, this was what she had managed to understand about her abilities.
Additionally, shrinking to a smaller size provided tactical advantages. For instance, being nearly invisible at ant size allowed Kara to move freely and use her powers without being detected.
"If I'd had this power in Gotham, dealing with Joker would have been so much easier," Kara thought, though she was grateful to have the ability now.
The next day, as Martha had said, Clark returned from Metropolis.
The siblings hadn't seen each other in a while, and their reunion was lively as they shared their experiences.
That evening, after dinner, they went to their secret base—a secluded island—to relax and train together.
The games they played were anything but ordinary. Only here, away from prying eyes, could they unleash their true power without holding back.
"Clark, let's see if you've gotten rusty!" Kara called out as she lunged toward him.
Clark, always ready for a challenge, responded immediately, raising his hands to meet her attack.
The siblings' hands collided with a loud "bang," the shockwave stirring the surrounding sea into turbulence.
On Earth, there were very few beings capable of matching their strength. For Kara and Clark, this sparring was a chance to fight without restraint.
Kara refrained from using any advanced fighting techniques at first, instead opting for a basic test of strength. The two hovered mid-air, their feet off the ground, their hands locked as they wrestled.
Initially, Kara held back, unsure of how much Clark had grown since their last match. But she quickly realized that her younger brother had improved significantly.
Clark, ten years younger than Kara, had always struggled to match her strength. Yet now, standing before her at an impressive 6'4" (1.92 meters), he was no longer the little boy she remembered.
For a moment, Kara hesitated, staring at Clark in awe. He had grown taller than her 6'2" (1.9 meters) and had become a formidable opponent.
Noticing her distraction, Clark hesitated, his grip loosening.
Kara smirked. "Now!"
With a sudden burst of strength, she pushed him down hard, slamming him into the ground. The island shook under the impact.
Clark lay sprawled on the ground, groaning in defeat. "That doesn't count, Kara. You cheated!"
Kara crossed her arms, laughing. "Cheated? You're the one who got distracted. If I were an enemy, you'd be dead, Clark."
Clark sat up, his face a mix of annoyance and determination. "You were distracted first! Let's go again!"
Kara extended a hand to pull him up, smiling. "Fine, but don't say I didn't warn you."
They locked hands again, but this time, Kara didn't hold back. Knowing Clark's limits, she applied overwhelming force from the start.
Clark's face turned red as he struggled against her strength.
"Still think you can beat me?" Kara teased, her tone playful but firm. "I'm your sister, Clark. Ten years may not seem like much, but it'll always be a gap you can't cross."
Despite his efforts, Clark couldn't hold on and was pushed to the ground once more.
Admitting defeat, he sighed.
"Don't feel bad," Kara said, helping him up. "You're getting stronger. Now let's test your skills."
They transitioned to martial arts training. Over the years, Kara had taught Clark techniques from taekwondo, karate, Muay Thai, and even more traditional styles like tai chi and bājíquán.
On the island, the siblings sparred freely, letting go of any restraints. Kara held back enough to avoid injuring Clark, using their matches as an opportunity to build his combat experience.
The final part of their training involved testing their super abilities.
Both Kara and Clark had heat vision and super breath, but there were differences. Clark's heat vision was red, while Kara's was a vibrant blue, possibly due to differences in their physiology.
They practiced their super breath, creating hurricanes and freezing gales that temporarily turned the island into a winter wonderland.
Lastly, Kara reviewed Clark's progress with magic. While his mastery of elemental magic was minimal, his telekinesis had improved significantly.
"Remember, Clark," Kara said, "telekinesis is your best defense against magical attacks. Refine it further."
Clark nodded earnestly. "I will, Kara. I promise."
Kara smiled, ruffling his hair. "Good. You're making me proud."
As the sun began to set, the siblings decided to head home.
However, just as they were about to leave, a group of uninvited guests arrived on the island.