>>535554884
If you dont have Castoria I say yes. But if you DO shes kinda just a win more and helps out practically a handful of servants like Berserker Musashi that dont have a charge.

She can probably come in handy outside of that when you want shit to just die. At NP5 you could just theoretically spam Command seals and get a retarded 170% card and 500% critical damage buff from her alone while your party is invulnerable and drop a nuke of an NP or Critical chain.