User blog:Boronbo/the mysterious past

hi guys,in episode 97  Shizuku say that she almost die for just watching pain packer and rising sun of Feitan.that mean Feitan use it before .here is the question:do you think that he use it just to show his power to other membre or Feitan was agains't some one really strong (like Netero or Silver,Zono or some one else?) where he near to lose then he go angry and use pain packer and rising sun