How to get 3 stars in Fear the Rocket Spear Challenge coc (clash of clans)

In this video tutorial, I have explained in detail the easiest way on how to get 3 stars in Fear the Rocket Spear Challenge in coc. This event displays the rocket spear equipment for royal champion which has the ability for long range attacks in defense.
I have explained in English about this new event so that it becomes easy for you to understand the attack and follow it accordingly.