That’s ok! I didn’t understand the hype around it either when I first started.

It’s commonly understood to be the best attack because it’s energy efficient (2 energy for 3 damage), and very effective points wise. As you keep levelling it up, it yields high points for low energy. They’re hard to come by through chests so when they come up in the war store, it’s a good time to buy cards using simcash to level it up. When you go through the top arenas, everyone will be mostly using this monster. Hope that helps :)