Affinity
A Modern deck, by Alex Bertoncini
4th place at a tournament on 2014-07-27

Maindeck:

Artifacts
4 Cranial Plating
4 Springleaf Drum
1 Welding Jar

Artifact Creatures
4 Arcbound Ravager
3 Etched Champion
2 Memnite
4 Ornithopter
4 Signal Pest
1 Spellskite
3 Steel Overseer
4 Vault Skirge

Instants
2 Galvanic Blast

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Sorceries
4 Thoughtcast

Artifact Lands
4 Darksteel Citadel

Lands
4 Blinkmoth Nexus
4 Glimmervoid
4 Inkmoth Nexus

Sideboard:
1 Grafdigger's Cage
1 Spellskite
2 Blood Moon
2 Ancient Grudge
2 Spell Pierce
2 Wear
3 Thoughtseize
2 Whipflare