Warren Soultrader, Pitiless Plunderer, Carmen, Cruel Skymarcher, and Reassembling Skeleton

Prerequisites

• Warren Soultrader on the battlefield
• Pitiless Plunderer on the battlefield
• Carmen, Cruel Skymarcher on the battlefield
• Reassembling Skeleton in the graveyard

Steps

1. Activate Warren Soultrader by paying 1 life and sacrificing Reassembling Skeleton
2. When Reassembling Skeleton dies, Carmen and Pitiless Plunderer trigger
3. Resolve the Carmen trigger, causing you to gain 1 life and put a +1/+1 counter on Carmen
4. Resolve the Pitiless Plunderer trigger, creating a Treasure token
5. Resolve the Warren Soultrader ability, creating a Treasure token
6. Activate the Treasures by tapping and sacrificing them, adding
7. Activate Reassembling Skeleton by paying , returning it from your graveyard to the battlefield
8. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers