This clever loop hinges entirely on turning your team into artifacts using The Flesh Is Weak, which conveniently pumps them with +1/+1 counters and protects your combo pieces by shrinking opposing nonartifact creatures. Once Howlsquad Heavy is thus transformed into an artifact creature alongside its natural creature types, it can be tapped for a massive burst of red mana at max speed while you control plenty of Goblins. You then funnel a portion of that bounty right back into Voltaic Construct to untap Howlsquad Heavy, letting you repeat the process to generate infinite red mana and endless untaps for all your artifact creatures.