Mechanized Production + Lithoform Engine + Krark-Clan Ironworks + Mirror Box

Mechanized Production

Lithoform Engine

Krark-Clan Ironworks

Mirror Box

How it works

1. At the beginning of your upkeep, Mechanized Production triggers.
2. Holding priority, activate Lithoform Engine's first ability by paying 2 and tapping it, copying the Mechanized Production trigger.
3. Resolve the copy of Mechanized Production's ability, creating a token copy of Lithoform Engine.
4. Activate the Lithoform Engine token's first ability by paying 2 and tapping it, copying the Mechanized Production trigger.
5. Activate Krark-Clan Ironworks by sacrificing the Lithoform Engine token, adding CC.
6. Repeat from step 3.