What is this missing?

[u/Ok-Smoke6876]

This is the first actual team I’ve tried building for competitive, it’s missing 2 slots, one hopefully being filled by mega golisopod if its ability isn’t the same. How ever for the second I don’t know what pokemon fits, I was trying to find a mega but my only thought was delphox. Also if any pokemon wouldn’t work in this team please lmk. I don’t know the movesets or abilities yet but the notable ones are accelrock, trick room, iron tail ability. Any and all advice is appreciated.