Affinity
A Modern deck, by Thomas Shillingburg
10th place at a tournament in Washington, District of Columbia, United States on 2015-08-09

Maindeck:

Artifacts
4 Cranial Plating
4 Springleaf Drum
1 Welding Jar

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

Instants
4 Galvanic Blast

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Artifact Lands
4 Darksteel Citadel

Basic Lands
1 Mountain

Lands
4 Blinkmoth Nexus
3 Glimmervoid
4 Inkmoth Nexus

Sideboard:
1 Chalice of the Void
1 Grafdigger's Cage
1 Torpor Orb
1 Ethersworn Canonist
2 Blood Moon
2 Ancient Grudge
1 Dismember
1 Ray of Revelation
1 Day's Undoing
2 Thoughtseize
2 Whipflare