Shiro had decided to teach the person a lesson.
Just as the man was about to shift the cards, he felt a heavy pressure on his arm and on the card.
'Huh?' The man tried his best to lift the card but wasn't able to.
'Wha-'
'What the heck is going on?', the man was confused and shocked.
He couldn't define the phenomenon that was happening, not until he stared at Shiro's face.
'Damn it. Is it what that kid's doing? Didn't cusor poison him, so that he couldn't use mana?' The man thought. Even if a person drank Anti magic potion they would be able to use mana left in their body, but if they did so then only the pain would await them. Extreme hellish pain. They would be in such great pain that they would feel like dying. They would beg to die.