Mary Read and Anne Bonny, Gilded Assault Cart, Xorn, and Mind Over Matter

Prerequisites

• Mary Read and Anne Bonny on the battlefield
• Gilded Assault Cart in hand
• Xorn on the battlefield
• Mind Over Matter on the battlefield

Steps

1. Activate Mind Over Matter by discarding Gilded Assault Cart
2. Mary Read and Anne Bonny triggers, creating two tapped Treasure tokens
3. Resolve the Mind Over Matter ability, untapping target artifact, land or creature
4. Activate Gilded Assault Cart by sacrificing two Treasures, returning Gilded Assault Cart from your graveyard to your hand
5. Repeat

Results

• Infinite mana permanents you control can produce
• Infinite untap of permanents you control
• Infinite self-discard triggers