Four-Color Whirza
A Modern deck, by Jeremy Bertarioni
29th place at a tournament in Knoxville, Tennessee, United States on 2020-01-11

Maindeck:

Artifacts
1 Aether Spellbomb
2 Engineered Explosives
4 Mishra's Bauble
1 Sword of the Meek
1 Thopter Foundry

Creatures
4 Gilded Goose

Instants
3 Cryptic Command
2 Metallic Rebuke
2 Whir of Invention

Legendary Artifacts
4 Mox Opal (Banned in Modern)

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

Legendary Planeswalkers
4 Oko, Thief of Crowns (Banned in Modern)

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

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

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

Sideboard:
1 Damping Sphere
1 Ensnaring Bridge
1 Pithing Needle
3 Blood Moon
2 Abrupt Decay
1 Assassin's Trophy
3 Fatal Push
2 Mystical Dispute
1 Veil of Summer