If someone here is good at jjs skill builder please help😭😭

I want to make it like if i the move elbow drop locust guys r psecial will activate, but if i miss elbow drop in wont, here's what i got

https://preview.redd.it/0y6b25xs156h1.png?width=906&format=png&auto=webp&s=58a8853e39951f3b3905161dc1fb950fcc38a26b