Carl had stopped Seid's horizontally swinging mana blade by crossing his two swords like scissors.
If he had blocked it normally, his swords would have shattered, and his head would already be rolling on the ground.
But in that fleeting instant, Carl made the smallest possible angle between his swords, pushing with his right hand while simultaneously raising his left-hand sword in the opposite direction.
To compensate for his inevitable lack of raw strength, he even supported the sword with his left arm.
Against a mana blade, the weapon of an ordinary mana user was no different from a rotting branch—useless.
Yet, Seid had swung his sword honestly, without unnecessary flourishes.
And Carl had responded in kind.