Groups of monsters

[cildarith]

A confusion of umber hulks.

A garden of gnomes.

A clot of vampires.

A duplicity of dopplegangers.

A quiver of manticores.

A heard of ear seekers.

A shock of volts.

A load of bull.

A fraction of halflings.

A (re)assembly of trolls.

An annoyance of kobolds (any number being annoying).

and

...

An overkill of arch-devils

 

[Mathew_Freeman]

A collection of Orcs, Goblins, Trolls etc etc etc is collectively known as a "Waaaaaargh!" in Warhammer...always liked that as a noun, myself.

 

[Amrynn Moonshadow]

a tangle of hydras

(it doesn't always have to start with the same first letter / sound)

swarm of locusts (sp?)

flight of dragons

a conspiracy of litches

a council of treants

a court of vampires

an 0rgy of _____ (nymps / satyrs . . .)

a grumble of dwarves . . .

and so on . . .

 

[beta-ray]

A bowl of gelantinous cubes...

A bottle of mustard jelly...

Oh, that's just what you use to hold them?

 

[The Spectrum Rider]

A judgement of dragons.

A veil of fireflies. (It so happens.)

The Spectrum Rider

 

[Hand of Evil]

Think it should be A Clog of Gnomes.

 

[Andrew D. Gable]

Ooh, I like quiver of manticores and tangle of hydras particularly. Nice.

 

[kenjib]

A distraction of destrachans
A strangle of chokers
A scourge of stirge
A festering of rot grubs