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U/R Colossus
Featured by Ross Merriam on 2017-01-10 (Standard)

Maindeck:

Artifacts
1 Aethersphere Harvester (Not currently legal in Standard)
4 Cultivator's Caravan (Not currently legal in Standard)
1 Deadlock Trap (Not currently legal in Standard)
4 Hedron Archive (Not currently legal in Standard)
2 Key to the City (Not currently legal in Standard)
4 Prophetic Prism (Not currently legal in Standard)

Artifact Creatures
4 Foundry Inspector (Not currently legal in Standard)
4 Metalwork Colossus (Not currently legal in Standard)
2 Scrapheap Scrounger (Not currently legal in Standard)

Creatures
1 Elder Deep-Fiend (Not currently legal in Standard)
4 Glint-Nest Crane (Not currently legal in Standard)
3 Trophy Mage (Not currently legal in Standard)

Legendary Artifacts
2 Gonti's Aether Heart (Not currently legal in Standard)

Legendary Artifact Creatures
2 Hope of Ghirapur (Not currently legal in Standard)

Basic Lands
2 Island

Lands
4 Aether Hub (Not currently legal in Standard)
4 Sanctum of Ugin (Not currently legal in Standard)
4 Spire of Industry (Not currently legal in Standard)
4 Spirebluff Canal (Not currently legal in Standard)
2 Wandering Fumarole (Not currently legal in Standard)

Legendary Lands
2 Inventors' Fair (Not currently legal in Standard)

Sideboard:
3 Dispel (Not currently legal in Standard)
2 Harnessed Lightning (Not currently legal in Standard)
4 Kozilek's Return (Not currently legal in Standard)
2 Negate
2 Skysovereign, Consul Flagship (Not currently legal in Standard)
2 Chandra, Torch of Defiance (Not currently legal in Standard)