Mite Overseer + Krark-Clan Ironworks + Stridehangar Automaton + Aunt May

Mite Overseer

Krark-Clan Ironworks

Stridehangar Automaton

Aunt May

How it works

1. Activate Mite Overseer by paying 3W/P, creating a 1/1 Thopter and a 1/1 Phyrexian Mite artifact creature tokens.
2. When the Phyrexian Mites enter the battlefield, Aunt May triggers twice, causing you to gain 2 life.
3. Activate Krark-Clan Ironworks twice by sacrificing the Phyrexian Mite and Thopter, adding CCCC.
4. Repeat.

This clever loop harnesses the token-doubling replacement effect of Stridehangar Automaton to turn a single activation of Mite Overseer into a net-positive engine. When you pay to create a Phyrexian Mite, Stridehangar Automaton intercepts the event to spit out both the Mite and an extra Thopter token, feeding you a steady stream of artifacts. Each arriving creature triggers Aunt May to pad your life total, while Krark-Clan Ironworks happily chews up those newly minted tokens for raw mana to fund the next activation.