Mary Read and Anne Bonny, Library of Leng, and Transplant Theorist

Prerequisites

• Mary Read and Anne Bonny on the battlefield
• Library of Leng on the battlefield
• Transplant Theorist on the battlefield

Steps

1. Activate Mary Read and Anne Bonny by tapping it, causing you to draw a card and then discard an Island, Pirate or Vehicle card
2. The discarded card is put on top of your library instead of into your graveyard due to Library of Leng
3. Mary Read and Anne Bonny triggers, creating a tapped Treasure token
4. When the Treasure enters the battlefield, Transplant Theorist triggers, causing you to draw a card and then discard an Island, Pirate or Vehicle card
5. Repeat from step 2

Results

• Infinite self-discard triggers
• Infinite draw triggers
• Infinite tapped Treasure tokens