Yorion Four-Color Snow
A Modern deck, by Darkiundsa
1st place at a tournament in Magic Online on 2020-05-23

Maindeck:

Enchantments
4 Abundant Growth

Instants
2 Abrupt Decay
3 Archmage's Charm
2 Assassin's Trophy
2 Cryptic Command
1 Dovin's Veto
2 Fatal Push
3 Force of Negation
4 Kaya's Guile
4 Path to Exile

Legendary Creatures
4 Uro, Titan of Nature's Wrath (Banned in Modern)

Legendary Enchantments
1 Oath of Kaya

Legendary Planeswalkers
2 Jace, the Mind Sculptor
2 Teferi, Hero of Dominaria

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

Snow Creatures
4 Ice-Fang Coatl

Sorceries
2 Supreme Verdict
1 Winds of Abandon

Basic Snow Lands
1 Snow-Covered Forest
6 Snow-Covered Island
2 Snow-Covered Plains
1 Snow-Covered Swamp

Lands
1 Breeding Pool
4 Field of Ruin
3 Flooded Strand
1 Hallowed Fountain
2 Misty Rainforest
2 Mystic Sanctuary (Banned in Modern)
3 Polluted Delta
4 Prismatic Vista
1 Temple Garden
1 Watery Grave
1 Zagoth Triome

Sideboard:
2 Disdainful Stroke
3 Veil of Summer
1 Yorion, Sky Nomad
4 Ashiok, Dream Render
2 Timely Reinforcements
3 Unmoored Ego