[ She takes a deep, thoughtful, breath, probing at their connection like a tongue on a sore tooth before nodding in Muramasa's direction. ] No different than what I felt with Saber. You have a little bit bigger of a mana pool [ she says, putting it lightly ] but nothing really unusual.

So, [ she continues, turning to Ratio. ] unfortunately I'm not familiar with parallel worlds or timelines. Being pulled here is beyond any kind of Magecraft I've learned or heard about. That said, all servants are summoned from a place called the Throne of Heroes. Typically, only the World can summon them but Mages have derived a ritual that allows us to bring them here by containing them in different Classes. I imagine what brought us here is similar to that.

Trying to summon Ereshkigal without a proper catalyst will just end in you getting someone else at best and failure at worst, provided we can even summon her back from where she's been sent to. And doing it without proper preparation and protection is dangerous, especially if you accidentally summon a Berserker. Your mana is also different enough from what the ritual typically uses that there likely be other side effects as well.

We can't really know until we try.

[ She folds her arms, deep in thought. ] And all of this is assuming we're lucky enough for her to be in a place we can even summon her from.

[ She looks up. ] But your Command Spells aren't needed. You should save those and not waste them on silly things.