Leaving
Edward looked back at Kairos with a rather tired look. It seemed that he had been asked the question of how this spell worked so many times it triggered something within him. But regardless, he answered.
"When I cast that, I am relying on the mana close by in the air in order to form it. I don't know how to use my own mana for the actual formation, so I gather a small amount of mana and swirl it, letting it grow larger and larger."
He shrugged his shoulders.
"This naturally takes a long time. However, the mana that gathers, the stronger the pull, causing a snowball effect. Now that most of the mana in the area is gone, it will take several times longer than usual to do the same thing."
Kairos rubbed his chin before giving a small nod.
"So something like this?"