Copper Myr

An artifact set that wanted ramp had a problem: every classic mana dork carries a color identity that an artifact-matters deck might not want to commit to. The five-color Myr cycle solved it by stripping the body down to colorless and letting the only color appear on the output. The trade here is exact: a artifact creature that taps for one green, where the artifact card type does the structural work. It survives the removal aimed at colored spells, it counts toward affinity and metalcraft, it can be fetched by artifact tutors and looped by artifact recursion, and it hands green to a shell that has no business running green dorks. The color it produces is green; the deck it lives in does not have to be. That split between body and output is the entire reason the cycle exists: a green-producing accelerant a deck can run for its artifact synergies while its green needs stay minimal. The price of that flexibility is the slowness inherent to any two-mana creature that only pays back one mana a turn, plus the fragility of a 1/1 that any random ping kills before it earns its cost back. As the green entry in the Myr family it is quieter than Palladium Myr's two-mana-a-turn output, but it does the more interesting job: smuggling a color into artifact decks through a body that reads on the battlefield as one more artifact and nothing else.