User blog comment:B214/General Discussion/@comment-24098614-20170401200954

I want to ask a question how can Issei and Vali be killed at this point do they have the same weaknesses when they started like for example does Holy power kill Issei or Vali or anything that has Dragon Slaying properties because as long as they have Dragon powers inside of them they are still susceptable to Dragon Slaying weapons.

I know both of them are strong now but nobody is invincible in my opinion even these two characters.