Unlucky Cabbage Merchant + Nim Deathmantle + Krark-Clan Ironworks + Biotransference

Unlucky Cabbage Merchant

Nim Deathmantle

Krark-Clan Ironworks

Biotransference

How it works

1. Activate Krark-Clan Ironworks by sacrificing Unlucky Cabbage Merchant, as it's an artifact due to Biotransference, adding CC.
2. When Unlucky Cabbage Merchant dies, Nim Deathmantle triggers, causing you to pay 4 to return Unlucky Cabbage Merchant from your graveyard to the battlefield and attach Nim Deathmantle to it.
3. When Unlucky Cabbage Merchant enters, its first ability triggers, creating a Food token.
4. Activate Krark-Clan Ironworks by sacrificing the Food, adding CC.
5. Unlucky Cabbage Merchant's second ability triggers. Holding priority, repeat steps 1 through 3 one additional time.
6. Resolve the Unlucky Cabbage Merchant trigger from step 5, searching your library for a basic land card and putting it onto the battlefield tapped. You will not shuffle Unlucky Cabbage Merchant as it's a new object.
7. Repeat from step 4.