Soooooo, like my pal, Morgy, I, too have some experience with PP.
When making the deck, I didnt originally have to worry about any reshuffle effects. I do now and I have adjusted the deck accordingly. Just got
leyline of the void last week.
I chose Muldrotha as my commander. I wanted green mainly for
bloodbond March as well as untap effects like
awakening and
seedborn muse. I think I also run
doubling chant. If I do, I've never drawn it, but I'm pretty sure it's in there. I wasnt allowed to go infinite so I went with the untappy stuff to help speed up the milling process.
Then I knew I wanted black for cards like, again,
bloodbond march and
secret salvage, along with the tutors offered by black.
And blue is there for the
persistent petitioners, if you couldnt guess that.
My main wincondition (and only) is
thrumming stone because its technically non infinite. And if that doesnt work out, I just sit there and look pretty as I slowly mill my opponents without it.
I had an idea with
Bolas's Citadel to use the petitioners ability to mill 1 if my top card is a land and essentially make a storm deck with
aetherflux reservoir. At a certain point i gain more life than the spell costs, but I have yet to act on that idea. I've also considered self mill, but I wanted a deck that had to mill my opponents.
The deck does actually win, believe it or not, and win through milling. The decklist is on my profile, but it's super outdated I think. I'll probably go and update it for you.
Oh, also, I did stop using muldrotha as the commander. She's in the 99. Now I run
damia, sage of stone because my hand was always empty or close to it.
Edit: Here you go, fully updated! I took Morgantor's idea with the
Peregrine Drake+
Deadeye Navigator combo. Since my meta has increased in power level, infinite combos are kind of the standard. Also, for the record,
Doubling Chant was in the original deck list, I just took it out before ever casting it. I once made a 60 card
biovisionary deck and so I had a
doubling chant (well 2) on hand and decided to try it out. That biovisonary deck rocked. I want to try it in commander. We shall see.
Anyway, here is the deck:
https://deckstats.net/decks/69736/1255436-persistent-pertitioners-edh#show__spoiler