@Beloss: We have Medea. There is a much easier solution.
Rule.
Breaker.
<Snipped quote by PKMNB0Y>
Yeah, that would make sense for Medea to being doing her shifty stuff. No wonder why Atalanta is wary of that thing...
Madea needs to pull out Rule Breaker and see how many Servants she can steal by stabbing everyone in arms reach. I'd wager 8 before anyone can try to stop her, and by then she's got a good power base to hijack or slay the rest of them.
Though by that point Zelretch would jjust throw her into a parallel universe populated by animated cheese burger people and be done with it.
What is with the talk of power levels? Does one need to pull up the Rin's monologue from her battle with Dark Sakura in HF~?
I'm just speaking humorously in regards to the shear usefulness of Zelretch's sorcery as a utility in and of itself. Why fight when you can banish people to another universe?
Like throwing the moon on someone's head, for example...