Okay, just want to be simple here. Is it okay to use Innocent Maiden (4% NP gain per turn, 5% if MLB plus some quick buffs) for Tamamo as alternative for Prisma Cosmos? The updated servant page gives alternatives like Awakened Will (pretty risky to use with only 60% chance to succeed) and March of the Saint (event limited, not accessible for all players). Would Innocent Maiden be a better alternative than those two?
I think it doesn't really work that well with her since 5% is not much and quick is comletely useless for Tamamo. Since she's not a dps servant what you will want to do is spam only her arts cards. If you don't have prisma cosmos I'd recommend Magical Girl of Sapphire
Prisma Cosmos is good if you don't want to use her cards at all.
If you don't have that I'd simply go with Formal Craft or Divine Banquet.
Magical girl of Saphire would be great if you have it.
Boosting the one quick card she has doesn't really make sense. You should focus on an arts buff instead.
