Arthur looked toward the cards in his hands, their surfaces shimmering faintly with unspent power.
The system's voice came inside his head.
[ Host, what are you planning to do with them? Each of them is very precious and can make you even stronger, no matter if it's a skill or something else. ]
Arthur spoke aloud, his tone thoughtful.
"Upgrading a high-ranking skill is no good if I can't use it for long in a lengthy fight. They take too much of a toll on the body because of their power, and they also consume too much mana."
He paused, his eyes narrowing as he considered his options.
"What I'm planning to do is a little bit risky. But if it works, we'll have a very powerfull tool in our hands."
