The similes are "raining like an open faucet" or "coming down like Niagara falls." Another simile is "raining buckets."
The familiar idiom is "raining cats and dogs."
"Can you finish this simile when for it to be chopped down like a tree in the forest, falling silently under the weight of its own age?"
No, A Simile uses AS (or like) to make a comparison. For example, "It was raining as much as it did in Noah's time."
Its raining cats and dogs!
Volcano
Raining exclamation marks is a metaphor. This is because a simile has to have either 'like' or 'as.'
"when you are tired, I am the pillow waiting to provide you comfort."
The simile for a cool breeze is like having water run down your face
a fierce, frightening tiger who will pounce on your prey when provoked.
A simile for increase, or/and increasing could be like "A race car on a speed track." Or "A wolf hunting down prey."
Any comparison that uses like or as is a simile. Otherwise it is a metaphor. Like a giant bird flapping its wings, the airplane flew over the field. Simile. The airplane accelerated down the runway and with a mighty leap the giant bird flew into the sky. Metaphor
an orgasm flows through an old mans body
A simile.