Songs of the Damned, Chthonian Nightmare, and Timeless Witness

Prerequisites

• Songs of the Damned in hand
• Chthonian Nightmare in hand
• Timeless Witness on the battlefield
• available

Steps

1. Cast Songs of the Damned by paying , adding for each creature card in your graveyard
2. Cast Chthonian Nightmare by paying
3. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get
4. Activate Chthonian Nightmare by paying , sacrificing a creature with mana value 2 or less and returning Chthonian Nightmare from the battlefield to your hand, returning Timeless Witness from your graveyard to the battlefield
5. When Timeless Witness enters the battlefield, it triggers, returning Songs of the Damned from your graveyard to your hand
6. Cast Chthonian Nightmare by paying
7. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get
8. Activate Chthonian Nightmare by paying an amount of , sacrificing Timeless Witness and returning Chthonian Nightmare from the battlefield to your hand, returning a creature from your graveyard to the battlefield
9. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite magecraft triggers
• Infinite black mana