Golgari Yawgmoth
A Modern deck, by Aaron Barich
1st place at a tournament in Knoxville, Tennessee, United States on 2020-01-11

Maindeck:

Creatures
4 Birds of Paradise
1 Blood Artist
1 Cavalier of Night
4 Geralf's Messenger
1 Noble Hierarch
4 Strangleroot Geist
4 Wall of Roots (Not currently legal in Modern)
4 Young Wolf

Instants
4 Chord of Calling
4 Once Upon a Time (Banned in Modern)

Legendary Creatures
4 Yawgmoth, Thran Physician

Sorceries
4 Eldritch Evolution

Basic Lands
2 Forest
1 Swamp

Lands
3 Blooming Marsh
1 Khalni Garden
2 Nurturing Peatland
2 Overgrown Tomb
4 Twilight Mire
4 Verdant Catacombs

Land Creatures
1 Dryad Arbor

Legendary Lands
1 Urborg, Tomb of Yawgmoth

Sideboard:
2 Damping Sphere
1 Phyrexian Revoker
1 Kitchen Finks
1 Obstinate Baloth
1 Plague Engineer
1 Reclamation Sage
1 Thrashing Brontodon
1 Yixlid Jailer
1 Abrupt Decay
1 Assassin's Trophy
2 Veil of Summer
2 Thoughtseize