Got my own hapatara deck and i love the deck had it many years at this point. Mine isnt close to this kinda power level but just some considerations for you pal.
With chatterfang in the deck put
Pitiless Plunderer.
When i played with
crumbling ashes i found since its not a may sometimes my own creatures become targets.
Puppeteer clique is a great card for lots of synergy. I run it with infinte mana combos with melira and a sac outlet.
Overall list looks great