Tawnos, Solemn Survivor + Pestermite + Krark-Clan Ironworks

Tawnos, Solemn Survivor

Pestermite

Krark-Clan Ironworks

How it works

1. Activate Tawnos's second ability by paying 1, tapping it and sacrificing two artifact tokens, exiling Pestermite from your graveyard and creating a token copy of it that is an artifact in addition to its other types.
2. When the Pestermite token enters, it triggers, untapping Tawnos.
3. Activate Tawnos's first ability by paying 2 and tapping it, creating a copy of the Pestermite token and causing you to mill two cards.
4. When the Pestermite token enters, it triggers, untapping Tawnos.
5. Activate Krark-Clan Ironworks by sacrificing a Pestermite token, adding CC.
6. Repeat from step 3.