Much improved version of the mega pinsir HO I posted a couple days ago:
https://pokepast.es/40f704ead8609f74
You can also run firium z fire fang over poison jab, inferno overdrive always kills corv after rocks at +2, but I prefer the general nuke of dragon z and poison jab helping put damage into clef and fini so you can keep kart safe for later instead of using him to break.