Tatsunari, Toad Rider + Chthonian Nightmare + Priest of Gix + Altar of Dementia

Prerequisites

• You do not control a creature named Keimi.

Steps

1. 1Cast Chthonian Nightmare by paying .
2. 2Tatsunari triggers, creating a 3/3 Keimi legendary creature token.
3. 3When Chthonian Nightmare enters, it triggers, causing you to get .
4. 4Activate Chthonian Nightmare by paying , sacrificing Keimi and returning Chthonian Nightmare from the battlefield to your hand, returning Priest of Gix from your graveyard to the battlefield.
5. 5When Priest of Gix enters, it triggers, adding .
6. 6Activate Altar of Dementia by sacrificing Priest of Gix.
7. 7Repeat.

Effects

• Infinite black mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill
• Infinite storm count