Yuyu Hakusho Episode 30

The first round of the tournament is well underway. Now it seems that Team Rokuyukai's leader, Zeru, is ready to fight. Hiei decides to take this match, pitting fire against fire. Zeru starts by trying to scare Hiei, with a display of his power. Hiei just shrugs off the attacks, and gets ready to use his own ultimate technique, The Dragon of the Darkness Flame. How will this match end? What will the consequences of it be? And who is the new mysterious fighter from the Rokuyukai team?