The first enemy that we faced is a Daemon with around 87k HP. With an average of about 1.2k dmg per attack, we should be able to charge up our NP gauge here without much problem if your servants are at least Level 50 or above. It also requires five turns to fully charge its own NP gauge so try to kill it before it does.
Battle 2:
In the final stage, we will be facing two Sabers and one Berserker. Therefore, the best servant to be used for this battle is definitely an Archer class with AOE NP, e.g. Gilgamesh or Arash. If you plan to take them out one by one, Berserker should be your first target due to his low HP and weak to every other servant classes. After that, focus on Caesar as he can use attack increase buff and use all your NPs onto Attila as her AOE NP is devastating and she can recover her HP with her own skill.
If you are looking to farm the dangos as effectively as possible, this 30AP stage is not the one that you should be farming but do take note that it has quite a high chance of dropping the rare material, Heart of a Foreign God which is needed by quite a few servants for ascension or skill level up. Therefore, if you care more about this material than dangos, try farming this stage as you should be able to get one within three to four tries which is much easier to obtain compared to farming it from the daily quests.
The enemies that we faced in this first stage consist of three different servant classes, Archer, Assassin and Caster. Since it is almost impossible to build up our NP gauge in the boss stage, we should make use of this stage to make sure all our NPs are ready. We start first by focusing on Assassin as she is able to drain our NP gauge while charging up her own and by only needing four bars to full charge, she can be quite troublesome if not taken out fast enough. After that, we turn our attention onto Caster as she is able to charge up her NP gauge with her skill and leave Archer for the last as she doesn’t have any threatening skills and deals low damage. As the enemies’ HP aren’t that high, a Berserker can easily take out 80% of their HP with a Brave Chain.
Battle 2:
For players who only play the NA version, this should be the toughest boss ever that you would face at this point in the game. With a HP of 260k, even with all your NPs combined you would utmost only be able to drop her HP to half and have to deal with the remaining HP with normal combat. Besides that, as we don’t have any 5* Lancer class servant available in the NA version yet, the strongest Lancer that we can use is probably going to be Cu Chulainn. A high level Jeanne is also recommended to slowly peel off her HP or bring along a strong Berserker such as Vlad III or Heracles. Be sure to check for evasion skill before using your NP so that it would not be wasted.
In terms of dangos farming efficiency, the Goddess Rank is only good to farm if you have more than two Bathing Moon Goddess CE equipped, but even so the 5AP is still much more efficient as it is much easier to obtain the Moonlight Fest CE from the event shop than this gacha-only CE. Do note that special dangos do not drop from this stage but if you have already unlocked this stage there won’t be any need for the special dangos also.
St. George is very useful here as all the enemies have single target NP, allowing him to tank a hit for the party using his taunt skill. If you do not have any CEs that provide NP charges at the start of the battle, you need to make sure that you have your NP gauge fully charged before the next battle. The enemies should be targeted in order of Archer > Assassin > Caster.
Battle 2:
If St. George managed to survive the first battle, continue using him to tank hits for your Heracles as they can be easily get taken out with one or two hits if not careful. Try to deal as much damage as possible with Heracles as they are the main source of damage output. If all of them are taken out and left you with the Cu Chulainns, it is still possible to win the battle as they are able to tank quite a bit of damage with their Protection from Arrows skill and charge up their NP to deal the finishing blow to Orion.