Whirza
A Modern deck, by Chris Iaali
2nd place at a tournament in Williamsport, Pennsylvania, United States on 2019-08-25
As reported at http://www.starcitygames.com

Maindeck:

Artifacts
2 Chromatic Star
2 Ensnaring Bridge
1 Grafdigger's Cage
1 Ichor Wellspring
4 Mishra's Bauble
2 Nihil Spellbomb
2 Pentad Prism
1 Pithing Needle
1 Pyrite Spellbomb
2 Sword of the Meek
4 Thopter Foundry

Creatures
3 Goblin Engineer

Instants
1 Galvanic Blast
2 Whir of Invention

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Legendary Creatures
4 Urza, Lord High Artificer

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

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

Lands
1 Hallowed Fountain
4 Polluted Delta
4 Scalding Tarn
1 Steam Vents
1 Watery Grave

Legendary Lands
1 Inventors' Fair

Sideboard:
1 Grafdigger's Cage
1 Welding Jar
1 Blood Moon
1 Celestial Purge
2 Fatal Push
1 Galvanic Blast
1 Wear
1 Sai, Master Thopterist
2 Tezzeret, Agent of Bolas
1 Collective Brutality
1 Dead of Winter
2 Thoughtseize