What Nia was doing was truly heaven-defying. However, she wasn't the only one with mind-shattering abilities; Luna and her sister Nuna were equally amazing.
They may not have the means to move through time, but their control over shadows is impeccable. Klaus is already aware of their ability to use shadows to create shadow beings that can fight on their behalf.
Additionally, just like Nia, they can utilize the shadows to augment their abilities, which will significantly enhance their defense.
In fact, they had already started...
However, what caught Klaus's attention now wasn't the shadow being raised slowly. This time, it was how they were using the shadows.
Klaus raised his brow, and Eren smiled.
"It is called Shadow Enchantment," Eren said, then went on to explain. "They are using the shadow to strengthen themselves, and while at first they might only have the means to boost their defense, this time they are boosting everything.