"Of Doom"

Adding the two words "of doom" to any innocuous noun has a strange effect. It takes this noun and makes it sinister and in some cases frightening. Observe:

Puppy.
Puppy ... of DOOM!

Notebook.
Notebook ... of DOOM!

Fuzzy rabbit.
Fuzzt rabbit ... of DOOM!

Whereas, were you to apply the same principal to a noun that in no way innocent, the effect is largely lost. Observe.

Satan.
Satan ... of DOOM!

Murderer.
Murderer ... of DOOM!

Catastrophe.
Catastrophe ... of DOOM!

As you can see, nowhere near the same effect. Perhaps it is because the doom is already implied in such words? Who can say for certain. However, adding "of DOOM!" to any word that does not deserve it (such as 'kitten') instantly makes for hillarity. Beward the kitten ... of DOOM!