ASPD debuff isn't a problem for Damage over Time (CC#10 Day 5 Rotation Site Risk 15/MAX)
ASPD debuff? What ASPD debuff? Skills that makes instanteous attacks (such as Passenger), inflicting a damage over time starus (such as Thorns) or changing attack properties to per second (such as Ifrit) ignores ASPD modifiers, which is actually this useful in Contingency Contract site.
Because this map is ridiculously hard though, I think that it is fine to use Ling here for the sake of max risk... I don't see a clear that can possibly do without her for max risk. On risk 8 however she's optional, but the ASPD debuff still hurts a lot that yog might have to use Thorns, Ethan and Blue Poison all at the same time.
The Blueflowers would be the real run killer if not for the fact thsir buff only affects ATK and ASPD... still making them glass cannon that their first form can be simply killed with deploying operators that can immediately do a lot of damage to them. Though in my case, since I'm borrowing Passenger again, I used the strategy of trapping them in a "splitbox" (a technique that traps enemies in the exact middle of two tiles for purposes of allied units' attack ranges), blocking them in the middle of two tiles can make them otherwise get targetted by two operators without any overlapping attack ranges.
BGM:
Flowering Night (Touhou 10.5 Scarlet Weather Rhaspody)
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