[Touhou LostWord] Advanced Challenge L0o Koishi nightmare 25sp farm

It's not worth farming this nightmare stage, you should farm the warm-up stage instead. But if you don't care about SP, then go for it. This is easier than other advanced challenges, probably because Yin is OP asf. Koishi has Focus Down, and her pet has Focus Up, so she will need some ST spell cards to deal with it. I had to use MV Remi for single-target because who even deals Yin Metal/Fire damage. There's have like L10.1 Remi for Fire and some evil unit coming in the next 2 weeks for Metal. Shion's anthro card is for consistency in Gauge 2. If you don't have that, try using a 50% Slash / 4 DEF Down ATK lock card. #touhoulostword #東方lostword #ds #games #東方lw #東方ロストワード #touhoulw #lostword #vs #sdt #advancedchallenge #ac