There's a theory that many of the important characters that Noctis and his friends encounter in the world of Final Fantasy XV represent one of the mythical creatures throughout the series history, whether they were one of the summons or another of the more well - known but
less powerful creatures.
Having to be called back from the front lines due to one of them getting beaten by a few far
less powerful creatures ends up getting somewhat frustrating and they rarely end up contributing to the battle at all.