Shorikai, Genesis Engine + Voltaic Construct + Krark-Clan Ironworks + Heartstone + Encroaching Mycosynth

Shorikai, Genesis Engine

Voltaic Construct

Krark-Clan Ironworks

Heartstone

Encroaching Mycosynth

How it works

1. Cause Shorikai to become a creature.
2. Activate Shorikai by paying 1 and tapping it, causing you to draw two cards, discard a card, and create a 1/1 Pilot creature token.
3. Activate Krark-Clan Ironworks by sacrificing the Pilot, adding CC.
4. Activate Voltaic Construct by paying 1, untapping Shorikai.
5. Repeat.

By weaving Encroaching Mycosynth into your board state, every nonland permanent you control transforms into an artifact, cleverly allowing non-artifact creatures like Voltaic Construct to be targeted by its own untap ability. With Heartstone reducing the activation cost of that untap ability to just one mana, and Krark-Clan Ironworks standing ready to convert your creatures into a steady stream of colorless mana, the engine begins to hum. You use this generated mana to repeatedly activate Shorikai, Genesis Engine—first turned into an artifact creature via the Mycosynth—to draw through your deck while churning out Pilot tokens to feed back into the Ironworks for the necessary fuel.