Affinity
A Modern deck, by Joseph Stargel
3rd place at a tournament in Duluth, Georgia, United States on 2019-05-05
As reported at http://www.starcitygames.com

Maindeck:

Artifacts
4 Cranial Plating
4 Springleaf Drum
2 Welding Jar

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

Enchantments
2 Experimental Frenzy

Instants
1 Dispatch
3 Galvanic Blast

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Artifact Lands
4 Darksteel Citadel

Basic Lands
2 Mountain

Lands
4 Blinkmoth Nexus
4 Inkmoth Nexus
3 Spire of Industry

Sideboard:
2 Damping Sphere
1 Relic of Progenitus
1 Torpor Orb
2 Etched Champion
2 Rest in Peace
2 Ancient Grudge
1 Angel's Grace
1 Dispatch
1 Karn, Scion of Urza
2 Thoughtseize