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Affinity
A Modern deck, by Caleb Scherer
1st place at a tournament in Las Vegas, Nevada, United States on 2015-12-11

Maindeck:

Artifacts
4 Cranial Plating
4 Springleaf Drum
2 Welding Jar

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

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Sorceries
4 Thoughtcast

Artifact Lands
4 Darksteel Citadel

Basic Lands
1 Swamp

Lands
4 Blinkmoth Nexus
3 Glimmervoid
4 Inkmoth Nexus

Sideboard:
1 Etched Champion
2 Hangarback Walker
2 Spellskite
2 Blood Moon
2 Ghirapur Aether Grid
2 Ancient Grudge
1 Dismember
1 Nature's Claim
1 Slaughter Pact
1 Whipflare