Affinity
A Modern deck, by Joshua Smith
2nd place at a tournament in Charlotte, North Carolina, United States on 2017-10-14

Maindeck:

Artifacts
4 Cranial Plating
4 Springleaf Drum

Artifact Creatures
4 Arcbound Ravager
2 Etched Champion
2 Master of Etherium
3 Memnite
4 Ornithopter
4 Signal Pest
4 Steel Overseer
4 Vault Skirge

Instants
4 Galvanic Blast

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Sorceries
1 Claim

Artifact Lands
4 Darksteel Citadel

Basic Lands
1 Mountain

Lands
4 Blinkmoth Nexus
4 Inkmoth Nexus
3 Spire of Industry

Sideboard:
1 Grafdigger's Cage
1 Relic of Progenitus
2 Etched Champion
1 Blood Moon
2 Ghirapur Aether Grid
1 Rule of Law
1 Ancient Grudge
2 Dispatch
1 Wear
2 Thoughtseize
1 Bitterblossom