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This is an incredibly complicated question to answer, as its subject to a variety of confounding factors, not the least of which is subjective bias on the part of human drafters

This lowers the casting cost of a spell by one mana for each artifact you control

It couldnt hurt to try out and Airship Crash in the main deck at first, but this might end up just being a great sideboard card

Copy Artifact (Alpha Edition) $15,000$29,400 BGS 9.5 Gem Mint Why It's Valuable: Can become a copy of the best artifact on the battlefield (like a Black Lotus)

The Demon synergy adds an extra layer of power, turning it into a life-drain engine if you can keep a Demon on the board