A quick google search found this Athreos list using
Shadowborn Apostle:
https://www.moxfield.com/decks/CyNmRBNAwkCHcZHrJLOXzQ.
It's a bit pricey like most cEDH decks, but people are usually open to proxies.
Key takeaways from the google list and cEDH in general:
-Like Fuzzy2Wasy said, you want to have no lands that enter tapped. Dual lands are basically a must, even in two colors.
-Having fast mana like
Mana Crypt and things like
Mox Diamond is very important to ramping outside of green.
-Tutors are a great inclusion, though I probably wouldn't run
Profane Tutor in cEDH. It seems too slow, though I could be mistaken.
-Try to avoid having any high mana card that you can't cheat out or doesn't win you the game.
Razaketh, the Foulblooded is good with
Shadowborn Apostle because it can come out for free. All of the big 4+ mana value cards in your deck would be too slow to run in cEDH, and cards like
Diabolic Tutor that have strictly better alternatives (
Demonic Tutor) should be replaced by their better versions or removed.
-Cards that don't specifically help you win or stop your opponents' probable game plans should be cut.
Despark isn't necessarily a bad card, but it would be mostly useless in cEDH. Same with
Eyes of the Beholder. Sure it gets around indestructible for 4BB, but so does
Swords to Plowshares for W. Also, cards like
Ensnaring Bridge aren't likely to be much help, since you'd basically have to be top decking to get much use out of them most of the time.
-Try to avoid slow value cards like
Palace Siege. They often cost too much mana and give you too little in return for competitive play.
Some of the other forum members like Morganator 2.0 will be able to give you a better idea of what to include or not, but this should help get you started.