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Affinity
A Modern deck, by Robert Cucunato
3rd place at a tournament in Columbus, Ohio on 2016-11-12

Maindeck:
1 Island
1 Mountain

Artifacts
4 Cranial Plating
4 Springleaf Drum

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

Instants
3 Galvanic Blast

Legendary Artifacts
4 Mox Opal (Banned in Modern)

Sorceries
1 Thoughtcast

Artifact Lands
4 Darksteel Citadel

Lands
4 Blinkmoth Nexus
3 Glimmervoid
4 Inkmoth Nexus

Sideboard:
2 Grafdigger's Cage
1 Tormod's Crypt
1 Etched Champion
1 Spellskite
1 Blood Moon
2 Ghirapur Aether Grid
2 Ancient Grudge
1 Dismember
2 Spell Pierce
1 Whipflare
1 Bitterblossom