(Last Updated 10/08)
Shimousa introduces a new Ascension Item: Refined Magatama. Almost all Free Quests in Shimousa have a chance to drop them, but they are not a very common Ascension Item or Skill Leveling material except for Servants from Shimousa along with some immediate upcoming Servants. There will be opportunities to acquire them in the Event Shop next event.
There are 2 Ascension items on release that have their best farming location here, although in the Cursed Beast Gallstone's case, only barely. Focused Ascension Item farming is generally only best when Masters need the Ascension Material immediately for whatever reason. Ideally, farm Refined Magatama at any of the mixed nodes.
As is the case with any of these Ascension Item breakdowns per Singularity, we always want to hammer the message home that farming Ascension Items just by their top drop location isn't always efficient.
Some Free Quests with multiple materials are a more efficient way to gather Ascension items if a Master needs all of them. Considering just how many items are needed for each Servant, it's usually only a matter of time until Masters run out of their stock of Ascension Items. The more patient Masters will often have a larger amount of materials than the impatient Master by trying to cover multiple farming needs at once.
Most mixed Free Quests are still fairly bad - but some mixed nodes stand out. It is always good practice to check the top 3 nodes for an Ascension Item and see what other drops can be acquired while farming.
For example, Seeds of Yggdassil may have a higher individual drop rate in Babylonia's Lost Capital, but farming them in Shimousa is incredibly effective as for only a minor reduction in drop rate, Masters can also farming Ghost Lanterns or Refined Magatama at a solid rate.
The mixed Ascension Item drop locations listed below offer a pretty good return on your AP provided a Master needs all of the listed Ascension Items, but will not be featured as the best location for any of its dropped Ascension Items.