Golgari Tron
A Modern deck, by Thomas Swan
3rd place at a tournament in Syracuse, New York, United States on 2018-09-16

Maindeck:

Artifacts
4 Chromatic Sphere
4 Chromatic Star
4 Expedition Map
3 Oblivion Stone
1 Relic of Progenitus

Artifact Creatures
2 Walking Ballista
3 Wurmcoil Engine

Creatures
1 World Breaker

Instants
2 Fatal Push

Legendary Creatures
1 Emrakul, the Promised End
2 Ulamog, the Ceaseless Hunger

Legendary Planeswalkers
4 Karn Liberated
2 Ugin, the Spirit Dragon

Sorceries
4 Ancient Stirrings
4 Sylvan Scrying

Basic Lands
3 Forest

Lands
1 Ghost Quarter
1 Llanowar Wastes
1 Overgrown Tomb
1 Sanctum of Ugin
4 Urza's Mine
4 Urza's Power Plant
4 Urza's Tower

Sideboard:
3 Thragtusk
3 Nature's Claim
2 Surgical Extraction
3 Collective Brutality
2 Thoughtseize
1 Swamp
1 Urza's Factory