Abyssal Yuyuko (Labyrinth of Touhou 2 Plus Disk)
This is not a very notable fight IMO. Abyssal Yuyuko's main gimmick is Concentrating and then using Saigyouji Flawless Nirvana at certain HP thresholds. She uses this combination four times, first at 99% HP, then 60%, 35% and 10% HP. Tanking the spell is a matter of having high HP, high DRK affinity and 200+ DTH resistance. If you can tank Flawless Nirvana, and you also have high SPI resistance on your tanks / supports, you honestly have the fight figured out, because Abyssal Yuyuko's regular moveset (which includes beefed up, personal spellcards like Ghostly Dream's Abyssal Butterfly and Ghastly Abyssal Dream) isn't too impressive.
Some of her generic attacks, like Destroy Magic and Black Universe, can be quite annoying, but due to Abyssal Yuyuko's low speed, it's fairly easy to switch victims out before she can act. She has a few other mechanics (like auto buffing her stats before her turn and powering up if she kills your party members) but nothing you haven't seen or dealt with before. TBH the only thing impressive about Abyssal Yuyuko is her bulky HP.
Abyssal Yuyuko has full resistance to TRR, DTH, SIL and PAR and high resistance to PSN, but has less resistance to SHK and no resistance to HVY. She has an unsurprisingly high affinity to SPI, and has strong CLD and DRK affinity, but has less affinity for PHYS and is neutral to FIR and NTR. She is technically weak to MYS, but like some past bosses, her high MND can make some MYS attackers seem weaker than they are. Abyssal Yuyuko alternatively has a weakness to WND that some physical attackers (like Mystia, Aya, Futo, Suika and Sakuya) might want to take advantage of.
-In case you're not familiar with the playable version, Yuyuko's other major gameplay gimmick, besides being the DTH ailment expert, is her ability to drain the ATB of her victims. This ATB manipulation is fairly rare. She was the only character capable of it in LOT1. And in LOT2, aside from the Diva Subclass with its (nerfed) generic skills, I believe Koishi is the only other playable character capable of this via Awakening (she gets a passive that shortens her delay between moves if she dodges)
-Both playable and Abyssal Yuyuko are capable of draining ATB with their attacks and this effect actually kicks in whether Yuyuko's attack actually lands or not, though only Abyssal Yuyuko is capable of draining a character's ATB to 0.
-None of Yuyuko's personal spellcards have any specific ACC modifiers.
Music is "Bloom Nobly, Ink Black Cherry Blossoms ~ Border of Life" from Touhou 7
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