Unlucky Cabbage Merchant, Nim Deathmantle, Krark-Clan Ironworks, and Ygra, Eater of All

Prerequisites

• Unlucky Cabbage Merchant on the battlefield
• Nim Deathmantle on the battlefield
• Krark-Clan Ironworks on the battlefield
• Ygra, Eater of All on the battlefield
• available

Steps

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

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Near-infinite landfall triggers
• Put all basic lands from your library onto the battlefield tapped