The synergy here turns a simple untap loop into a boundless engine by transforming your creatures into artifacts. The secret lies in The Flesh Is Weak, whose static ability grants your creatures the artifact type as long as they carry +1/+1 counters—which it immediately provides upon entering the battlefield. This type change allows Voltaic Construct to target Kami of Whispered Hopes with its untap ability. Meanwhile, Kami of Whispered Hopes uses its own passive replacement effect to boost its power higher each time counters are involved, ensuring that tapping it for mana produces more than enough to continually pay the Construct's activation cost and generate infinite colored mana.