@chuchuchoerry I realize that the cold-hearted magician is a common archetype, but Lucas goes above and beyond teasing and petty displays of power to being a top-tier jerk. He seems to have zero interest in anything but his own benefit, he manipulates peoples' minds with the snap of his fingers or pressures them into agreements without informed consent, and he blames his victims for daring to stand up for themselves. Damaging the world tree seems like a rotten move, but it feels entirely consistent with his character thus far.
"So act as to treat humanity, whether in your own person or in another, always as an end, and never as only a means." - Immanuel Kant