I've always imagined that Berserker was the big question mark in research, as there's only really Waver's knowledge and whatever record keeping Tokiomi had going on. (Accessed via Rin, becaus Tohsaka-Velvet bromance is my reason for existing.) So, when it came time to do any sort of research into the grail wars to figure out what the heck even broke the grail, these were the only two sources. It was always a tossup between "did the Matou have Caster or Berserker this round?" and nothing was ever really confirmed. So, Waver would have about zero knowledge of Kayria existing and roll in the war.
no subject
I've always imagined that Berserker was the big question mark in research, as there's only really Waver's knowledge and whatever record keeping Tokiomi had going on. (Accessed via Rin, becaus Tohsaka-Velvet bromance is my reason for existing.) So, when it came time to do any sort of research into the grail wars to figure out what the heck even broke the grail, these were the only two sources. It was always a tossup between "did the Matou have Caster or Berserker this round?" and nothing was ever really confirmed. So, Waver would have about zero knowledge of Kayria existing and roll in the war.