Pitiless Plunderer, Reassembling Skeleton, Yahenni, Undying Partisan, and Teysa Karlov

Prerequisites

• Pitiless Plunderer on the battlefield
• Reassembling Skeleton on the battlefield
• Yahenni, Undying Partisan on the battlefield
• Teysa Karlov on the battlefield

Steps

1. Activate Yahenni by sacrificing Reassembling Skeleton
2. When Reassembling Skeleton dies, Pitiless Plunderer triggers twice, creating two Treasure tokens
3. Resolve the Yahenni ability
4. Activate the Treasure tokens by tapping and sacrificing them, adding
5. Activate Reassembling Skeleton by paying , returning it from your graveyard to the battlefield tapped
6. Repeat

Results

• Infinite creature LTB
• Infinite creature ETB
• Infinite creature sacrifice triggers
• Infinite death triggers