Artifact spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting an artifact spell pays for {1} or one mana of that creature's color.)
An eye for detail, a mind for numbers, a soul of clockwork.
Chief Engineer [Magic 2015]
$1.52Liquid error (snippets/product-price line 23): Computation results in '-Infinity'Unit price
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