mtg artifact commander precon Aetherdrift pre-con reveals March of the Machine Commander

Only vigilance critters won't care

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While its better known as an interaction spell, stapling any amount of mana acceleration to a 2 mana counter is ridiculously efficient, and there are only a handful of counterspells in the game that would be considered better even after 30 years

By spreading the mana value of your cards throughout your deck, you'll ensure you have something to cast each turn

Butcher Ghoul, Geralf's Messenger, Gravecrawler, Nether Traitor, Bloodghast, and Reassembling Skeleton all fall into the first category