[ DIFFERENCES ASIDE, Saber does think this would end well. Gilgamesh, begrudgingly, is a good ally to have. He also has a sword... She has a defensive cup. It should work.

But she is here, watching him get swarmed by these oversized rats. It doesn't come to mind to use her barrier as of this moment--this is actually a great opportunity for Gilgamesh to use his skills while they're swarming him. IN ONE

SWIFT

BLOW--

He is screaming. There's maybe a second or two as she watches him while she's holding her chalice. She almost threw its contents into the air on instinct when she's called for. ]

There's nothing I can do, Archer. If I use the grail, you'll be trapped with them for a short time. [ They seem to be ignoring her which she's glad for. She's a little worried for her temporary comrade in pest control though. The rats are basically picking on the one that's "down". ]

Can you not use your weapon? These rats cannot possibly overpower the King of Heroes. [ ??? She has never seen this side of him, so she's lost. ]