When Katana kill things they are roleplaying.
You see, this is the proper way to roleplay a Katana. A Katana, properly roleplayed, is akin to an Alien's acidic blood and the universe is a ship's fuselage. Its mere existence should be perpetually tearing a hole in the fabric of space-time, drawing forth all of the universe's material into its Katana Well, poking out the other side into a new universe and continuing onward ad infinitum.
That is proper roleplay.
However.
Consider a Katana that only rolls a 5 in its Prime Requisite of Katanaishness. My contention is that while you've probably rightly achieved a Katana Paradox, it is
reasonable for the player of that Katana (I mean "the Katana of that player", of course...pardon) to only be able to slice through the immediate space-time, merely draw in a
limited amount of material, and not poke through the other side into another universe. Therefore, all universes would not exist in a state of PKD (Perpetual Katana Destruction).
Like I said. A Katana Paradox. I accept that. But we aren't going for realism here. Just genre emulation.
And again, only 5 Katanaishness. So proper roleplay. Or at least you aren't welcome at my table if you start invoking the laws of PKD and try to roleplay your perfect engine of existence destruction.
What say you?