The end of her sentence was blotted out by sounds of destruction. The invisible Berserker must have begun to rampage. The nearby walls and floors were crushed. It demolished the entrance to a corridor that had been partially transformed into an otherworld by brute force.
“Now, you leave the rest to Berserker and run. I’ll have to be cautious when dealing with that mage with the scary face and the twisted Heroic Spirit; if I don’t kill them carefully, the ‘mud’ will fly everywhere...” Filia said as she leapt again and vanished through a break in the rubble.

Fate/Strange Fake: Volume 4, Chapter 12 ("Day 2, Morning")