Sultai Energy
A Standard deck, by Austin Smith
23rd place at a tournament in Dallas, Texas, United States on 2017-09-30

Maindeck:

Artifacts
2 Aethersphere Harvester (Not currently legal in Standard)

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

Creatures
3 Bristling Hydra (Not currently legal in Standard)
3 Glint-Sleeve Siphoner (Not currently legal in Standard)
4 Longtusk Cub (Not currently legal in Standard)
4 Rogue Refiner (Not currently legal in Standard)
4 Winding Constrictor (Not currently legal in Standard)

Instants
4 Fatal Push (Not currently legal in Standard)
2 Vraska's Contempt (Not currently legal in Standard)

Legendary Creatures
2 The Scarab God (Not currently legal in Standard)

Sorceries
4 Attune with Aether (Not currently legal in Standard)
2 Walk the Plank (Not currently legal in Standard)

Basic Lands
5 Forest
1 Island
4 Swamp

Lands
4 Aether Hub (Not currently legal in Standard)
4 Blooming Marsh (Not currently legal in Standard)
4 Botanical Sanctum (Not currently legal in Standard)

Sideboard:
1 Aethersphere Harvester (Not currently legal in Standard)
3 Gifted Aetherborn (Not currently legal in Standard)
3 Negate
2 Gonti, Lord of Luxury (Not currently legal in Standard)
2 Confiscation Coup (Not currently legal in Standard)
2 Duress
2 Lost Legacy (Not currently legal in Standard)