stormtide

Fate unraveler

I forget the name but there's a black enchantment creature that deals damage whenever an opponent draws

Why not the rest of the trials and cartouches (in sultai colors)?

Or maybe an orzhov necromancer with blue embalm

I'm hoping for an esper/orzhov zombie commander in hour of devastation. Maybe orzhov with blue activation?

You're missing the best butt of all: Storm Crow

I'd suggest filling out your sideboard. Sweltering suns and some artifact removal. Maybe ceremonious rejection

Anointed Procession, Mechanized Production

No problem.

Might need a bit more land, but looks good overall. Also, has etherium sculptor tested that well without an excessive amount of artifacts? Lastly you don't have enough cards that you can actually play

Composite Golem + Nim Deathmantle = infinite mana of any color
Infinite mana +Gelatinous Genesis/Hydra Broodmaster = infinite infinite/infinite

Also, I'd suggest changing the deck format to vintage

I'd suggest keeping two of them

Theoretically, fatal push and tragic slip shouldn't work on fliers

Too much counter, not enough burn. Also, don't forget your deck description and tags

Just so you know, Fling doesn't combo as well with Enigma Drake as I wish it did. Fling is still on the stack, so it won't be counted toward Enigma Drake's power. Same with Insult on the stack. Still seems like a great deck though

Just so you know, fling will be on the stack when if you sacrifice enigma drake, not in your graveyard. Also, if this is standard legal you're only allowed 15 cards in the sideboard.

I'd cut two Curious Homunculuses, and one Soul-Scar Mage, maybe a TITI. Then I'd add in some more burn and/or counterspells.

Too many creatures, not enough spells (at least for a burn deck). Cut Ruination Guide, and Tide Drifter since this is a spell deck. I'm not sure why you have Scrapheap Scrounger in here since you don't have any black mana. I'd take out one or two Cultivator's Caravans for some dual lands. Coming back from the graveyard is what makes it so good. I might add in a few more creatures that care about instant/sorceries. I'd add:
Brutal Explosion
Consuming Sinkhole
Kozliek's Return
Reality Hemorrage
Dynavolt Tower
Touch of the Void
Implement of Combustion
Walking Ballista

Throw in a few counterspells and draw spells, taking out whatever won't fit. Maybe add in some more dual lands in addition to your current land. If you're trying to be budget, I didn't know since you don't have tags. If you are, some of my suggestions won't work because they're too expensive, including most of the dual lands. Fill out your sideboard with some artifact hate, some more counterspells, and magma sray to deal with Scrapheap Scrounger

(P.S. Sorry if this came out rude)

command tower, commander's sphere, sol ring

I was thinking cards that you want to kill (or like it when you kill something). Carrier thrall, demon of dark schemes, desperate sentry, festering mummy, gavony unhallowed, lawless broker, sifter of skulls, festering mummy, unruly mob. Obviously, you can't fit all of these in, they're just suggestions.

PEDH is a very under appreciated format. I'd recommend adding shock though.
Do you mind helping out with my community PEDH? www.mtgvault.com/stormtide/decks/community-pedh/