【FGO】Double Castoria Looping System with NP Appends

Considering the upcoming NA 5th Anniversary, decided to do a Castoria guide. I tried to do multiple variations for the best loopers, trying to use the most difficult nodes (aka highest HP possible) to show how likely you are to loop or not despite the NP levels. Hopefully if you have an NP2+ servant, it captures how well they do. -Extra Classes [Avenger/Moon Cancer/Ruler/Alter Ego/Foreigner]: 00:00:00 Space Ishtar with 6CEs [2-3-1 Node] 00:02:11 Space Ishtar with Black Grail [400K HP Boss] 00:04:19 Space Ishtar 90+ Like [1-1-2 Node] 00:06:19 Summer Kama with 6CEs [2-3-1 Node] 00:08:13 Summer Kama with BG [400K Boss] 00:09:56 Summer Kama 90+ Like [1-1-2 Node] 00:11:40 Summer Kiara with 6CEs [3-3-3 Mixed Class Node] 00:13:44 Summer Kiara with Black Grail [3-3-2 Avenger Node] 00:16:02 Summer Kiara 90+ Like [2-2-2 Mixed Class Node] 00:18:22 Kiara with 6CEs [3-2-3 Node] 00:20:37 Kiara with Black Grail [2-3-2 Mixed Class Node] 00:23:04 Kiara 90+ Like [3-1-1 Node] 00:25:19 Hokusai with 6CEs [3-3-3 Man Node] 00:27:30 Ruler Moriarty with Smiling Face [3-3-2 Node] 00:29:49 Mysterious Ranmaru X with 6CEs [3-3-3 Mixed Rider Node] 00:31:53 Taisui Xingjun with 6CEs [3-3-3 Doors Node] 00:33:54 Taisui Xingjun with Miyu CE [2-3-3 Assassin Node] 00:35:59 Salieri with 6 CEs [3-3-3 Mixed Caster Node] -Saber: 00:37:54 Muramasa with 6 CEs [3-3-3 Archer Node] 00:40:32 Muramasa 90+ Like [1-1-2 Node] 00:42:33 Summer Tomoe with Miyu CE [3-3-2 Node] 00:44:26 Jason with Miyu CE [3-3-2 Node] -Archer: 00:46:15 Summer Jeanne with 6CEs [2-3-1 Node] 00:48:09 Summer Jeanne 90+ Like [1-3-2 Mixed Class Node] 00:50:32 Summer Jeanne with Black Grail [3-3-3 Lancer Node] 00:52:56 Zenobia with 6CEs [3-3-2 Node] -Lancer: 00:55:29 Summer Meltryllis with 6CEs [3-3-3 Mixed Saber Node] 00:57:42 Summer Meltryllis with Black Grail [3-3-3 Mixed Saber Node] 00:59:41 Vritra with 6 CEs [ 3-3-3 Mixed Node] 01:02:07 Vritra with Black Grail [3-3-3 Mixed Saber Node] 01:04:06 Percival with 6CEs [3-3-2 Mixed Node] 01:05:58 Percival 90+ Like [3-1-1 Node] 01:07:57 Lancer Ryouma with 6CEs [3-3-1 Node] 01:10:06 Lancer Ryouma with Black Grail [3-3-3 Mixed Saber Node] 01:12:12 Fionn with Miyu CE [3-3-2 Node] 01:14:04 Mary Anning with Miyu CE [3-3-3 Node] -Rider: 01:15:53 Summer Mordred with 6CEs [3-3-2 Mixed Node] 01:18:08 Summer Mordred with 6CEs [3-3-3 Mixed Assassin Node] 01:20:32 Da Vinci Lily with 6CEs [2-3-3 Node] 01:22:40 Da Vinci Lily with Black Grail [3-3-3 Assassin Node] 01:25:23 Da Vinci Lily 90+ Like [1-1-2 Node] 01:28:04 Odysseus with 6CEs [3-3-2 Mixed Class Node] 01:30:36 Habetrot with 6CEs [3-3-1 Doors Node] -Caster: 01:32:31 Cheng Gong with 6CEs [3-3-3 Node] 01:34:41 Shikibu with 6CEs [3-3-3 Node] 01:36:54 Anastasia with 6CEs [3-3-3 Node] 01:39:07 Sieg with 6CEs [3-3-3 Node] 01:41:09 Scheherazade with 6CEs [3-3-3 Node] 01:43:05 Paracelsus with 6CEs [3-3-3 Low HP Node] 01:44:46 Nursery Rhyme with Miyu CE [3-3-3 Node] 01:46:38 Helena with 6CEs [3-3-3 Node] -Berserker: 01:48:36 Summer Musashi with 6CEs [3-3-2 Node] 01:50:34 Summer Musashi with Black Grail [2-3-1 Node] Note: Higher NP levels are necessary for these servants to work on most relevant nodes. NP1 copies will be suboptimal at best, dysfunctional at worst. Also, I have not captured all looping servants. Any servant that can only "loop" with a Kscope wasn't included, as that makes it too easy and should be easy to figure out without this guide.