New revision of the previous Hurkyl deck, this one is actually close to viable, even potentially broken, but I haven't found the right combination to exploit this engine.

Hurkyl, Master Wizard - The heart of the deck. For every non-creature permanent type you play, you can get a card at the end of the turn. With Encroaching Mycosynth, every card becomes an Artifact in addition to its other types, so if you play an Artifact Enchantment, you get two types, so you can match one on Artifact (any permanent with Mycosynth) and one of the same type as you played (an Enchantment). Basically every non-artifact permanent draws up to 2. The previous deck exploited this on (mostly Saga) enchantments, but I realized you could do the same with planeswalkers, with much more powerful results. Even without Mycosynth peek 5 and draw a planeswalker you see is really good. And most enchantments are removals so you can get chain removals. But with Mycosynth, play a planeswalker, get a planeswalker and any kind of permanent is real nice.

Before Mycosynth Forging the Anchor is mostly used to find the Mycosynth. After Mycosynth it becomes busted, letting you draw all non-land permanents out of the top 5.

Stenn, Paranoid Partisan I usually play for planeswalkers or enchantments if I don't have Mycosynth. If I know Mycosynth is coming I'll use Stenn to reduce artifacts, to ramp into Mycosynth, then after, all permanents cost one less.

Witness Protection is basic cheap removal. The only downside is a 1/1 chump can still be used to whittle away at planeswalkers.

Borrowed Time more removal, this of the universal sort.

The Modern Age // Vector Glider card draw/filtering and a body.

My biggest conundrum is which planeswalkers to play, I'm currently using the below. Kaito Shizuki is probably the weakest, I'll rotate it for Ichormoon Gauntlet next time I play I think. Originally I had 2 gauntlets but that was overkill, but having a gauntlet with all those planeswalkers, you can get them to ultimate pretty quickly, or use negative loyalty abilities without killing your planeswalkers. The ones below focus on removal and token generators.

The Wandering Emperor - obvious.
Elspeth Resplendent - Pretty good, with the number of removal enchantments the -3 is basically removal, and the ultimate is easy with proliferation. The plus is used to buff all your tokens or the few non-token creatures in the deck.
The Eternal Wanderer - fun card, covers all the bases, especially nice as board wipe.
Sorin the Mirthless - obvious.
Vraska, Betrayal's Sting - obvious, proliferation especially good with all the planeswalkers though.

Sideboard
Loran, Disciple of History - with Mycosynth, returns any non-land permanent when played, and every incoming legendary (Stenn/Hurkyl and any planeswalker) returns any permanent from the graveyard. Generally you get enough cards otherwise that this becomes less great.
Inventive Iteration // Living Breakthrough - bounce, gets any permanent from graveyard with Mycosynth, then becomes a spell stopping flyer. Not really worth playing when you can play planeswalkers for this mana cost.
Behold the Unspeakable // Vision of the Unspeakable - similar to above, but with Forging the Anchor and all the other draw it's pretty easy to have this 7/7 and above.
Mirror Box - Not enough duplicate planeswalkers to make this worth it.
Luxior, Giada's Gift - planeswalkers can still be blocked, doesn't excite me much.