I just realized, I have a couple of slight continuity errors.  Izzy claimed that two servants went down about an hour ago, but for everything to work out properly, she would only know about one of those servants. Because she knew about Assassins death, she is the grail for group one, which further complicates things because Ninja's Caster and Undercovers Lancer are part of that group.  Undercovers Lancer had to be summoned after Saber and Berserker, because a servant is summoned into the class that best suits them. Riley's Lancer should be a Saber or a Berserker. However, her Lancer was summoned before group twos Saber(mine) and Berserker(Cmpuncles) chronologically.  That's why I can't switch the groups.  Ninja's Caster also has to be summoned in group 2, but he's currently in group one. Fortunately, I can switch that around. Actually, putting him in group 2 makes more sense now that I think of it because my character and his servant. as well, because of stuff. The only way I can really fix this slight error is that Izzy had to take in both Archer and Zero Lancer due to proximity, which means she now has one of group 2's servants inside of her.  Not how I intended it, but it works.