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Ironworks Combo
A Modern deck, by Zac Elsik
53rd place at a tournament in Atlanta, Georgia on 2018-06-30

Maindeck:

Artifacts
3 Chromatic Sphere
4 Chromatic Star
3 Engineered Explosives
4 Ichor Wellspring
4 Krark-Clan Ironworks (Banned in Modern)
4 Mind Stone
2 Pyrite Spellbomb
4 Terrarion

Artifact Creatures
2 Myr Retriever
4 Scrap Trawler

Legendary Artifacts
4 Mox Opal

Sorceries
4 Ancient Stirrings

Artifact Lands
4 Darksteel Citadel

Basic Lands
2 Forest

Lands
3 Buried Ruin
4 Grove of the Burnwillows
2 Tendo Ice Bridge

Legendary Lands
3 Inventors' Fair

Sideboard:
1 Defense Grid
1 Wurmcoil Engine
2 Ghirapur Aether Grid
1 The Antiquities War
2 Guttural Response
4 Lightning Bolt
4 Nature's Claim