Affinity
A Modern deck, by Dylan Donegan
2nd place at a tournament in Cincinnati, Ohio, United States on 2018-03-25

Maindeck:
1 Mountain

Artifacts
4 Cranial Plating
4 Springleaf Drum
1 Welding Jar

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

Instants
2 Galvanic Blast

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Legendary Artifact Creatures
1 Hope of Ghirapur

Sorceries
3 Thoughtcast

Artifact Lands
4 Darksteel Citadel

Basic Lands
1 Swamp

Lands
3 Blinkmoth Nexus
1 Glimmervoid
4 Inkmoth Nexus
3 Spire of Industry

Sideboard:
1 Grafdigger's Cage
1 Etched Champion
2 Ghirapur Aether Grid
1 Rest in Peace
1 Shapers' Sanctuary
1 Ceremonious Rejection
2 Dispatch
1 Silence
2 Stubborn Denial
2 Thoughtseize
1 Vandalblast