G/B Tron
A Modern deck, by Rafael Costa Zaghi
4th place at a tournament in Sao Paulo, Brazil on 2017-08-12

Maindeck:

Artifacts
4 Chromatic Sphere
4 Chromatic Star
4 Expedition Map
3 Oblivion Stone

Creatures
2 Thought-Knot Seer
2 World Breaker

Instants
2 Fatal Push

Legendary Creatures
2 Ulamog, the Ceaseless Hunger

Legendary Planeswalkers
4 Karn Liberated
2 Ugin, the Spirit Dragon

Sorceries
4 Ancient Stirrings
4 Collective Brutality
4 Sylvan Scrying

Basic Lands
1 Forest
1 Swamp

Lands
2 Blooming Marsh
1 Llanowar Wastes
1 Sanctum of Ugin
1 Scavenger Grounds
4 Urza's Mine
4 Urza's Power Plant
4 Urza's Tower

Sideboard:
1 Grafdigger's Cage
3 Relic of Progenitus
1 Spellskite
1 Wurmcoil Engine
2 Thragtusk
2 Dismember
2 Nature's Claim
3 Warping Wail