User blog comment:IamJakuhoRaikoben/Chapter 503: The Last Sight Seen, Review./@comment-4449950-20160926123003/@comment-1359322-20160926231241

I don't see why it's worth complaining over the lack of Oracion Seis. The last time we saw another guild being involved in the "big final battle/fight" was in Tartaros and Sting & Rogue got shafted to the mid-boss and barely beat their opponent. Prior to that was in the GMG-Dragon part where we only got very few panels for each Dragon Slayers sans Natsu and no one won at all. Clearly Mashima doesn't care enough about other guilds to give them any important role.