Apparently this is a deck
https://mtgtop8.com/event?e=33043&d=452790&f=LE
https://www.youtube.com/watch?v=M1qLqvg-N_8&t=5s
//Lands: 21
4 Ancient Tomb
4 City of Traitors
4 Dark Depths
4 Thespian's Stage
1 Wasteland
1 Ghost Quarter
3 Mountain
//Other Mana: 13
4 Chrome Mox
4 Simian Spirit Guide
2 Kazuul's Fury
3 Shatterskull Smashing
//Moons: 10
4 Blood Moon
4 Magus of the Moon
2 Blood Sun
//Artifacts: 6
3 Expedition Map
3 Sorcerous Spyglass
//Planeswalkers: 4
4 Karn, the Great Creator
//Spells: 4
4 Telim'Tor's Edict
//Creatures: 2
2 Terror of the Peaks
//Sideboard: 15
1 Mycosynth Lattice
1 Ensnaring Bridge
1 Liquimetal Coating
1 Walking Ballista
1 Pithing Needle
1 Tormod's Crypt
1 Claws of Gix
2 Trinisphere
2 Dead // Gone
2 Goblin Rabblemaster
2 Chandra, Awakened Inferno
This is interesting in a format that loses hard to Blood Moon (Saga decks, Lands, Depths, greedy dual-heavy Ragavan decks).
The cheese here is to cast T1 Blood Moon/Magus of the Moon/Blood Sun with extremely high consistency. Then play T2 Dark Depths to ETB with 0 counters as a mana-producing Mountain. It taps for mana to cast things while opponent is hopefully Mooned out of the game. Then at EOT you tap Dark Depths for R to pay for Telim'Tor's Edict or Claws of Gix, sacrificing the Moon, which makes an instant speed 20/20 Marit Lage (Dark Depths-Mountain becomes regular Dark Depths with 0 counters and triggers). You won't necessarily need to sacrifice Moon. Opponent may just try to remove it to unlock their mana, making you a free 20/20.
To avoid derping yourself out of the game, do not play Dark Depths before Blood Moon if both are in hand (then it still has counters).
If Moons do not stick, there is of course the normal plan of Thespian's Stage + Dark Depths + fast mana for T2 Marit Lage.
In a pinch, extra Edicts can cycle for R in response to removal on any permanent.
To win through Ensnaring Bridge and other combat-denying effects, you can 20 the opponent with Kazuul's Fury or Terror of the Peaks.
The GW Depths matchup seems like a nightmare, since sacrificing Moon also turns on their Depths. All they have to do is play T1 Dark Depths or hold up Crop Rotation and they can make a 20/20 too. They can also set up Stage-Depths much more easily. So maybe sometimes you don't want to sacrifice Moon and need to win another way.
I think the above deck looks too linear on the combo and could be optimized. Terror of the Peaks seems really slow and conditional. Since Kazuul's Fury already fills that role without requiring an expensive creature to stay in play, it could probably be cut for a multi-modal card like small Chandra, Bonecrusher Giant, Thought-Knot Seer, or Laelia, the Blade Reforged. Any of these would provide a lower CMC alternate wincon as well as added disruption.
