Five-Color Control
A Legacy deck, by jankyb
3rd place at a tournament in Magic Online on 2020-09-06

Maindeck:

Creatures
2 Plague Engineer

Enchantments
2 Sylvan Library

Instants
4 Abrupt Decay
4 Brainstorm
1 Force of Negation
4 Force of Will
4 Swords to Plowshares

Legendary Creatures
3 Uro, Titan of Nature's Wrath

Legendary Planeswalkers
1 Jace, the Mind Sculptor
3 Oko, Thief of Crowns (Banned in Legacy)

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

Snow Creatures
4 Ice-Fang Coatl

Sorceries
4 Ponder

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

Lands
4 Misty Rainforest
2 Polluted Delta
3 Prismatic Vista
1 Tropical Island
1 Tundra
1 Underground Sea
1 Volcanic Island

Legendary Lands
1 Karakas

Sideboard:
1 Nihil Spellbomb
1 Collector Ouphe
3 Containment Priest
1 Plague Engineer
2 Back to Basics
2 Pyroblast
1 Red Elemental Blast
1 Surgical Extraction
2 Veil of Summer
1 Garruk, Primal Hunter