Grinding Breach
A Modern deck, by Shaheen Soorani
1st place at a tournament in Durham, North Carolina, United States on 2020-03-07
As reported at http://www.starcitygames.com

Maindeck:

Artifacts
3 Engineered Explosives
4 Grinding Station
4 Mishra's Bauble

Creatures
1 Thassa's Oracle

Enchantments
4 Underworld Breach

Instants
1 Archmage's Charm
2 Cryptic Command
1 Fatal Push

Legendary Artifacts
2 Mox Amber

Legendary Creatures
4 Emry, Lurker of the Loch
2 Urza, Lord High Artificer

Legendary Planeswalkers
4 Teferi, Time Raveler

Snow Artifacts
4 Arcum's Astrolabe (Banned in Modern)

Sorceries
3 Thoughtseize

Basic Snow Lands
4 Snow-Covered Island
1 Snow-Covered Swamp

Lands
1 Flooded Strand
1 Hallowed Fountain
2 Mystic Sanctuary (Banned in Modern)
4 Polluted Delta
1 Sacred Foundry
4 Scalding Tarn
1 Steam Vents
1 Watery Grave

Legendary Lands
1 Hall of Heliod's Generosity

Sideboard:
2 Blood Moon
1 Detention Sphere
2 Aether Gust
1 Ceremonious Rejection
3 Mystical Dispute
1 Surgical Extraction
1 Wear
1 Urza, Lord High Artificer
2 Ashiok, Dream Render
1 Timely Reinforcements