What idiom is used to describe this behavior of raising prices and promoting sales?

What idioms are there to describe the strong promotion activities?

Many _ drifting mountains: explanation _: blowing. Many people blow, which can make the mountains drift away. To make a metaphor, the more people speak ill, the greater the harm to people. This is also a metaphor for the power of numbers.

Moving mountains and filling the sea: explain moving mountains and filling the sea. Excellent fingering skills. Now it is more like the great strength and courage of human beings to conquer and transform nature.