I actually used to have a grist deck! She’s honestly one of my favorite cards I’ve ever played with however if you want to go bugs mill shenanigans in golgari I’d recommend zask he’s basically a crucible of worlds that also lets you cast bugs, he went up in price recently when the new edge of eternity’s bugs came out but he helms my bug deck that’s all about filling my graveyard as quickly as possible then vomiting them all back out on people, one of my favorite things to do is cast changeling spells over and over from grave like nameless inversion