JRR and Fate/Stay Night.
Five Istari. For some reason, Grail War. Zelretch shuttles back a Matou, a Tosaka, and an Einzbern.
The Blue Wizards, here played by Gendo and Kozo because of John Biles, count as one Master and summon Kei and Yuri.
The other servants are Jamethiel Priestbane, Vash the Stampede, The Doctor, Commander Shepard, Shirou Emiya, and for lack of a better idea, your choice of Tatsuya Shiba or Miyuki Shiba (Mahouka).
Half siblings of Lelouch
F.E.A.R. Alma wa Britannia
Friday the 13 Jason vo Britannia
Mahouka Koukou no Rettousei Tatsuya sh Britannia and Miyuki sh Britannia
Maou Sensei Negima!
Dirty Pair/Card Captor Sakura Kei and Yue
Lovely Angels/Eva Kei and Yui
Dirty Pair/Sword Art Online Kei and I forget whether she is Yui or Yue.
Dirty Pair/MIB K and Yuri
MIB/GaoGaiGar J and K
MIB/Otokojuku J and K (reads the same as above, but one is an alien cyborg with a giant robot, the other is a student at a Japanese Highschool who may end up PotUS.)
Permutations and combinations of the above.
Five Istari. For some reason, Grail War. Zelretch shuttles back a Matou, a Tosaka, and an Einzbern.
The Blue Wizards, here played by Gendo and Kozo because of John Biles, count as one Master and summon Kei and Yuri.
The other servants are Jamethiel Priestbane, Vash the Stampede, The Doctor, Commander Shepard, Shirou Emiya, and for lack of a better idea, your choice of Tatsuya Shiba or Miyuki Shiba (Mahouka).
Half siblings of Lelouch
F.E.A.R. Alma wa Britannia
Friday the 13 Jason vo Britannia
Mahouka Koukou no Rettousei Tatsuya sh Britannia and Miyuki sh Britannia
Maou Sensei Negima!
Dirty Pair/Card Captor Sakura Kei and Yue
Lovely Angels/Eva Kei and Yui
Dirty Pair/Sword Art Online Kei and I forget whether she is Yui or Yue.
Dirty Pair/MIB K and Yuri
MIB/GaoGaiGar J and K
MIB/Otokojuku J and K (reads the same as above, but one is an alien cyborg with a giant robot, the other is a student at a Japanese Highschool who may end up PotUS.)
Permutations and combinations of the above.