G/B Constrictor
A Standard deck, by Andres Campion
2nd place at a tournament in Dallas, Texas, United States on 2018-01-20

Maindeck:
4 Forest

Artifacts
2 Aethersphere Harvester (Not currently legal in Standard)

Artifact Creatures
3 Verdurous Gearhulk (Not currently legal in Standard)
4 Walking Ballista (Not currently legal in Standard)

Creatures
4 Glint-Sleeve Siphoner (Not currently legal in Standard)
3 Jadelight Ranger (Not currently legal in Standard)
4 Merfolk Branchwalker (Not currently legal in Standard)
3 Ravenous Chupacabra (Not currently legal in Standard)
4 Winding Constrictor (Not currently legal in Standard)

Instants
2 Blossoming Defense (Not currently legal in Standard)
3 Fatal Push (Not currently legal in Standard)
2 Vraska's Contempt (Not currently legal in Standard)

Legendary Creatures
2 Rishkar, Peema Renegade (Not currently legal in Standard)

Basic Lands
5 Swamp

Lands
4 Aether Hub (Not currently legal in Standard)
4 Blooming Marsh (Not currently legal in Standard)
3 Foul Orchard (Not currently legal in Standard)
2 Hashep Oasis (Not currently legal in Standard)
2 Ifnir Deadlands (Not currently legal in Standard)

Sideboard:
2 Lifecrafter's Bestiary (Not currently legal in Standard)
2 Deadeye Tracker (Not currently legal in Standard)
1 Fatal Push (Not currently legal in Standard)
1 Naturalize (Not currently legal in Standard)
1 Vraska's Contempt (Not currently legal in Standard)
2 Vraska, Relic Seeker (Not currently legal in Standard)
4 Duress
2 Golden Demise (Not currently legal in Standard)