Four-Color Loam
A Legacy deck, by lampalot
2nd place at a tournament in Magic Online on 2020-06-05

Maindeck:

Artifacts
4 Chalice of the Void
4 Mox Diamond

Artifact Creatures
2 Baleful Strix

Creatures
4 Dark Confidant
4 Knight of the Reliquary
1 Scavenging Ooze

Enchantments
3 Sylvan Library

Instants
4 Abrupt Decay
1 Assassin's Trophy

Legendary Creatures
1 Leovold, Emissary of Trest

Legendary Planeswalkers
3 Oko, Thief of Crowns (Banned in Legacy)

Sorceries
1 Green Sun's Zenith
2 Life from the Loam

Basic Lands
1 Forest

Lands
1 Barren Moor
2 Bayou
1 Blast Zone
1 Cabal Pit
1 Maze of Ith
1 Misty Rainforest
1 Savannah
1 Scrubland
1 Tranquil Thicket
2 Tropical Island
1 Underground Sea
4 Verdant Catacombs
4 Wasteland
2 Windswept Heath

Land Creatures
1 Dryad Arbor

Legendary Lands
1 Karakas

Sideboard:
2 Containment Priest
2 Plague Engineer
4 Leyline of the Void
2 Swords to Plowshares
1 Leovold, Emissary of Trest
2 Thalia, Guardian of Thraben
1 Jace, the Mind Sculptor
1 The Tabernacle at Pendrell Vale