Thread:Lord Hyōga/@comment-26504521-20150822224459/@comment-4576906-20150825204534

I agree; the Inu no Taishō's decision to use the Sō'unga (if that is the crux of your question, Raditz Jr.) was most likely borne out of a need on the part of the filmmakers to showcase all three swords in the flashback that began the movie. As for his in-universe logic, there really isn't any, as the Tessaiga would have more than sufficed for the task of keeping a weakling like Takemaru from following Izayoi or Inuyasha. Furthermore, if Takemaru were killed by the Sō'unga, he would come back as the living dead...something the Inu no Taishō would certainly not have desired to occur. There was no need to use&mdash;or indeed, any evidence that he did in fact use&mdash;a special technique to defeat Takemaru, as that would have been overboard and excessive. All circumstances suggest the two of them both expired either at the moment the building collapsed on them, or shortly thereafter.