The phrase "a beast which" is correct and usable in written English.
It can be used when describing a specific type of creature or entity, often in a literary or metaphorical context.
Example: "In the dark forest, there lurked a beast which had not been seen by human eyes for centuries."
Alternatives: "a creature that" or "an animal which".
The hand is not disembodied but connected to a beast, which slowly stands upright behind the hero's chair.
"You are just like a beast which wants to eat small countries, and while you should help them you want to destroy them".
Overseas hunters, largely from the US and Europe, are paying tens of thousands of dollars for the guaranteed kill of a beast which is not really wild at all, but which still possesses a magnificent trophy head which can then be taken home and boastfully hung upon the wall.
John's preparations have no effect, however, as he is tricked into killing the guardian that had been preventing the tragedy, freeing a beast which can control the collective unconsciousness of mankind.
Society is a beast which destroys everything in its path.
That being said, email is a complicated beast, which is why a number of companies try to just tackle one angle – like Mailbox did with triage.
Little Red Riding Hood is an outgrowth of the motif of the woman coupled with a carnivorous beast, which is what we would expect of a culture in which women married young and husbands were more likely than wives to survive.
The latest in line is Wild Beast's Big Cat, a video set in a not-so-abstract dystopia, full of salacious sexuality, CCTV and the looming presence of a savage beast, which may or not be a metaphor for "The Man".
Admittedly we made ourselves vulnerable to their criticism by leaving the speech so late in Tony's term for fear of the press revenge and by a classic failure of spin – describing the press as a "feral beast" which allowed the commentators to focus on the phrase and ignore the argument.
Luke mistakes the droid for a meteorite and approaches the device, before being attacked by a snow beast, which looks like Cookie Monster from PBS' Sesame Street.
Censorship is a unique beast, which varies from country to country, and censors often operate in a manner so opaque as to seem nonsensical.
