A villain I hear is exclusive to the anime, Rugby was a strange guy.
He boldly challenges Yusuke Urameshi outside of the tournament arena to test his power.
Which was unfortunate, because he was out of spirit energy.
He wanted to kill Yusuke mainly because humans shouldn’t have power on par with demons.
He’s even warned by his team’s leader not to mess with Yusuke Urameshi.
And he’s murdered for it. Good riddance.