Stella

Boom! Stella kicked the ground a second time, taking another huge step backwards. She took a distance of more than ten meters away from Touka. It was beyond the range a sword or a spear could reach. Long distance―it was the range for only bows or guns, or magic.

====================
Stepping outside Touka's range, Stella poured more power into the Dragon Breath surrounding her Device, Lævateinn. Devouring that magic, her sword's fiery aura grew in light and heat. As the flames covered the point of her sword, Stella faced Touka who was charging from the front.
"Take this! Dragon Fang!"
It became an attack.
Lævateinn―the flame that surged from the point of her sword in a flash took the shape of a living creature.
It was―a dragon. A dragon with a long, serpentine body. That fiery dragon opened a jaw full of teeth and struck down upon Touka.
Touka managed to just barely sidestep that burning dragon's jaw. Instantly, the dragon twisted around to bare its teeth against Touka again.
Lævateinn was no ordinary fiery weapon. With fangs that burned through everything, for the sake of taking a bite of the enemy, it was an attack that would follow its target to the ends of the earth. Shaking it off was impossible. Touka didn't have a single means to counter it.
An average Blazer had no chance against Lævateinn. The magic that came from Stella's overwhelming capacity all carried enough power to deliver certain death. If a challenger started a fight with an inadequate offensive, he'd find himself beaten at his own game. So Touka―
"―Raikiri."
At the approaching fire dragon, she responded with the strongest and fastest attack she had.

=========================== Sent Ouma flying 30 Meters with a strike
The Crimson Princess had no reason to decline. Because her opponent was an A-Rank knight like herself, this was her role to uphold. Deciding that, Stella pushed Ouma's body away with all her strength.

And against Ouma who had ben blown off thirty meters, she began to prepare her sure-kill Noble Art. It was a technique that brandished a sword that burned with heat and light, investing all her spirit into her longsword, Lævateinn.

================================= Extends her blade to 50 meters
A sword of light and heat against a sword of storm-winds. Both blades were more than fifty meters long, each an attack beyond the norm. With only thirty meters between the users, their reach was surely more than enough. If they both swung down on their opponent at the same time like this, they would clash.

=========================== The shockwaves from Stella and Ouma clashing blades were causing impacts "as if they had falled off a skyscraper"
At the white-hot tempest that was blowing and burning away everything, the Hagure sisters screamed. No, everyone else in that place including them protected themselves with magic, curled up their bodies, and just narrowly managed to stand firm. If they lost focus even a little, their bodies would've been blown far away, and probably would've taken an impact as if they had fallen off a skyscraper. That was why everyone protected themselves desperately. It was a battle beyond what ordinary knights could bear to watch.