User blog comment:B214/Chapter 496: Forward/@comment-7418318-20160801113150

At least this chapter answers the question of whether Neinhart can really summon 3 Spriggan level Historias at their full power: No he can't.

But I wonder whether this lack of power comes from his inability to manifest Spriggan-level creatures in the first place, or if it's because he's spread too thin from summoning three at once.

If it's the latter, it could mean that beating one will make the other two closer to the strength they had in life.