[Suzerain of Sheol]

Well, at least he's amenable to her suggestions. Though, if that trait extends beyond her alone, it may prove a problem. Even still, more surprising is his idea for their next move. Does he even understand what he's proposing? She certainly doesn't object to a bout of wanton slaughter of the innocent, but this Donovan may well be about to get far more than he bargained for.

Assassin shrugs at him. "Some Servants do. I have neither the ability, nor need, for such sustenance. You will notice I exert almost no toll in mana on you whatever. Only in bright daylight will you feel any strain from my magic, but if it's only weak humans it won't matter regardless. Do mind, though, our bond has weakened me physically, I'm no stronger than you in that regard. With that in mind..." Catherine rolls her wrist, the fanned cards of her Noble Phantasm appearing between her gloved fingers.

"The ritual has provided me with a surplus of mana. Consider this first draw essentially free. Would you care to try your luck, mon bon garçon??"