Talk:SE.RA.PH/@comment-29427540-20170509125526/@comment-182.30.65.130-20170509134629

Removing her HP degen and NP degen debuffs are practically mandatory unless you're running NP2+ Merlin or whatever. Then there's her card resistances (only remove the ones you focus on using; if you're using an Arts team you can get by without the Buster or Quick), and her ATK/DEF buffs (self-explanatory).

Only buy the debuff/stuncharm resist erasure if you're using debuffs and/or stuns/charms (note: NP drain does not count as a "debuff"). Only buy the NP damage up erasure if you're not using Jeanne/Merlin/David/Tristan to Invul/Dodgetank her NPs. Crit damage up is highly recommended (there's a reason why we hate Spriggans) but if your team's tanky and healy enough you may skip it. Removing her Charm and/or NP/Skillseal skills helps if you can spare the KP. Removing her HP regen REALLY helps if she starts spamming her self heal (since the buff lasts 10 turns and doubles any healing she receives) and you're not running Amakusa/Medea/Meltlilith to buffcancel.

Though, it's probably best to just buy out the entirety of the KP shop, you'll probably want to finish every single mission anyway.