Then Rails can chop it to pieces, or Goran can stuff a bomb into its body cavity, and it will be like with Mineko.
Or whoever casts fire on our side can burn it to ashes.
It could be a unicorn, an elemental, a spirit, or just a humanoid demon.
Then you need to summon it right away in the large hall, where there is a double or triple. And if the monster turns out to be a cyclops half the size of the room, then the bots from the other hall might attack it and run away themselves.
And then you can split it into pieces and flush it down the toilet in portions.
It might not be very effective, I might get blown away in the process, or it might help.
If I'm going to get blown away anyway, why pay less?