Lloyd went quiet for a moment, picking up his fork and poking at his salad with it. Somehow, Ed had managed to hone right in on the biggest problem with his plan, the reason why his plan wasn't really even a plan just yet, but a goal that felt just out of reach.

"It... depends. If someone had an Exsphere attached without a Key Crest first, you can't just take it back off. Their mana will go out of control if you do, and they'll... they'll turn into a monster." Like his mom. Like Marble. Dammit, how could fix this? There had to be a way somehow. There had to. He couldn't accept the idea that there wasn't. "They'd need a Key Crest first, and even then I'm not sure if it'd work." They hadn't tried it yet, for good reason.