Kakyoin laughed at the wording, as well. For as mature as he appeared, he was still a teenager, after all.

That deal was only fair, after all, but he hesitated. He didn't like to demonstrate it at all. He sighed and forced a smile. He set down his sketchbook and turned his palms upward. An emerald-like substance formed in his hands.

"I can do almost anything with this. It's mildly poisonous to everyone but me, so don't touch it."