Yes, i do agree with the part of fragments of decent ninjas, like some fragments of Hanzo Salamander and Sasuke Susano'o .. But the other fact about getting 80pcs fragments of some ninjas is not that useless, remember that the 80 ninja frags that we always get way back v.3.0 are useful for Fragments Refining, which gives Seal Scrolls or Summoning Scrolls and sure 10 fragments of Iruka .. Some of them like the other response said like Kurenai for her skillbreak and sooner or later we will get the other skillbreaks for other ninjas too and some of them are available from the fragments pool of the v.3.0 Survival Trial ..