Teysa Karlov + Junk Diver + Myr Retriever + Krark-Clan Ironworks

Teysa Karlov

Junk Diver

Myr Retriever

Krark-Clan Ironworks

How it works

1. Activate Krark-Clan Ironworks twice by sacrificing the nontoken artifact with mana value one or less and Myr Retriever, adding CCCC.
2. When Myr Retriever dies, its ability triggers twice, returning Junk Diver and the nontoken artifact with mana one or less to your hand from your graveyard.
3. Cast Junk Diver and the nontoken artifact by paying at most 4.
4. Activate Krark-Clan Ironworks twice by sacrificing the nontoken artifact and Junk Diver, adding CCCC.
5. When Junk Diver dies, it triggers twice, returning the nontoken artifact and Myr Retriever to your hand from your graveyard.
6. Cast the nontoken artifact and Myr Retriever by paying at most 3.
7. Repeat.