Four-Color Urza
A Modern deck, by William Miller
7th place at a tournament in Columbus, Ohio, United States on 2020-01-05

Maindeck:

Artifacts
1 Aether Spellbomb
1 Chromatic Star
1 Engineered Explosives
1 Ensnaring Bridge
4 Mishra's Bauble
3 Pithing Needle
2 Sword of the Meek
4 Thopter Foundry
1 Welding Jar
1 Wishclaw Talisman

Creatures
3 Goblin Engineer

Instants
2 Whir of Invention

Legendary Artifacts
4 Mox Opal (Banned in Modern)

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

Legendary Planeswalkers
2 Teferi, Time Raveler

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

Basic Snow Lands
4 Snow-Covered Island
1 Snow-Covered Mountain
1 Snow-Covered Plains

Lands
4 Flooded Strand
1 Hallowed Fountain
1 Misty Rainforest
1 Polluted Delta
4 Scalding Tarn
1 Steam Vents
1 Watery Grave

Sideboard:
1 Ensnaring Bridge
2 Blood Moon
4 Galvanic Blast
3 Mystical Dispute
1 Ashiok, Dream Render
2 Thoughtseize
2 Timely Reinforcements