No the passaphire was just the spirit world's best defensive spell...I don't know how far CN got with that but I'm guessing that it already showed that Sensui broke that using his sacred energy and his plan of having Koenma spend a portion of his energy reviving the game master so that the spell wasn't as strong as it should be. Has it shown yusuke dying yet and everyone getting angry going to A class yet?
Right now Yusuke punched Koenma so he could fight. Then he punched the shit out of Kazuya to get Shinobu (I forgot his name) well the real one not the seven personalities out. Then he came out and wanted to shake hans but Yusuke attacked him and got knocked the f*ck down. Then he shook his hand and it ended. ^.^
That day is long to come. The DVD's are only out until the point where it showed what happened to everyone in the future...
Like Sniper killed some kids than dissapearded and the evil doctor guy changed his looks with plastic surgery and opened his own medical facility for good to repent. Seaman went back to a good high school Game master found friends.