Black Eldrazi
A Pioneer deck, by Clayton Cardinal
11th place at a tournament in Columbus, Ohio, United States on 2020-01-05
As reported at https://old.starcitygames.com/events/040120_columbus.html

Maindeck:
1 Forest

Creatures
4 Gifted Aetherborn
4 Matter Reshaper
3 Murderous Rider
2 Reality Smasher
4 Thought-Knot Seer

Instants
3 Assassin's Trophy
4 Fatal Push

Legendary Creatures
2 Kalitas, Traitor of Ghet

Legendary Planeswalkers
3 Liliana, the Last Hope
1 Ugin, the Ineffable

Sorceries
4 Thoughtseize

Basic Lands
3 Swamp
1 Wastes

Lands
1 Blast Zone
2 Blighted Fen
1 Castle Locthwain
1 Endless Sands
4 Fabled Passage
2 Ifnir Deadlands
4 Llanowar Wastes
2 Mirrorpool
3 Overgrown Tomb

Legendary Lands
1 Urborg, Tomb of Yawgmoth

Sideboard:
2 Grafdigger's Cage
2 Reality Smasher
2 Warping Wail
3 Gonti, Lord of Luxury
1 Kalitas, Traitor of Ghet
1 Ugin, the Ineffable
2 Cry of the Carnarium
2 Stain the Mind