Myr Retriever + Krark-Clan Ironworks + Ultron, Artificial Malevolence

Myr Retriever

Krark-Clan Ironworks

Ultron, Artificial Malevolence

How it works

1. Cast Myr Retriever by paying 2.
2. When Myr Retriever enters, Ultron triggers.
3. Holding priority, activate Krark-Clan Ironworks by sacrificing Myr Retriever, adding
4. When Myr Retriever dies, it triggers, returning an artifact card from your graveyard to your hand.
5. Resolve the Ultron trigger, causing you to pay 2 to create a token copy of Myr Retriever.
6. Activate Krark-Clan Ironworks by sacrificing the Myr Retriever token, adding .
7. When the Myr Retriever token dies, it triggers, returning the nontoken Myr Retriever from your graveyard to your hand.
8. Repeat.