Grixis Urza Breach
A Modern deck, by Ryan Bennett
3rd place at a tournament in Indianapolis, Indiana, United States on 2020-02-23

Maindeck:

Artifacts
3 Engineered Explosives
1 Everflowing Chalice
4 Grinding Station
4 Mishra's Bauble
1 Pentad Prism
2 Sword of the Meek
1 Thopter Foundry

Creatures
4 Sly Requisitioner
1 Thassa's Oracle

Enchantments
4 Underworld Breach

Legendary Artifacts
2 Mox Amber

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

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

Basic Snow Lands
3 Snow-Covered Island
1 Snow-Covered Mountain
1 Snow-Covered Swamp

Lands
1 Breeding Pool
3 Flooded Strand
2 Misty Rainforest
1 Mystic Sanctuary (Banned in Modern)
4 Polluted Delta
3 Scalding Tarn
1 Steam Vents
1 Watery Grave

Sideboard:
2 Tormod's Crypt
2 Aether Gust
2 Echoing Truth
2 Fatal Push
2 Galvanic Blast
2 Nature's Claim
2 Veil of Summer
1 Ashiok, Dream Render