What magical things happens when the king beats his drum?
Author: A Nigerian folktale
Title: The King Magic Drum
Read the story!
What drawback does the drum have?
Are you referring to a particular story or poem?
If so, what's the title? Who's the author?
Have you read this story?
https://www.worldoftales.com/African_folktales/Nigerian_folktale_4.html
The answer is right there in the first few sentences!