Tatsunari, Toad Rider, Carnival of Souls, Cloudstone Curio, Hateful Eidolon, and Gnarled Scarhide

Prerequisites

• Tatsunari, Toad Rider on the battlefield
• Carnival of Souls on the battlefield
• Cloudstone Curio on the battlefield
• Hateful Eidolon in hand
• Gnarled Scarhide on the battlefield
• Your life total is at least four
• available

Steps

1. Cast Hateful Eidolon by paying
2. Tatsunari triggers, creating a 3/3 Keimi legendary creature token
3. Keimi enters the battlefield, triggering Cloudstone Curio and Carnival of Souls
4. Resolve the Cloudstone Curio trigger, returning nothing from the battlefield to your hand
5. Resolve the Carnival of Souls trigger, causing you to lose 1 life and add
6. Hateful Eidolon enters the battlefield, triggering Cloudstone Curio and Carnival of Souls
7. Resolve the Cloudstone Curio trigger, returning Gnarled Scarhide from the battlefield to your hand
8. Resolve the Carnival of Souls trigger, causing you to lose 1 life and add
9. Cast Gnarled Scarhide by paying
10. Keimi triggers, causing each opponent to lose 1 life and you to gain 1 life
11. Gnarled Scarhide enters the battlefield, triggering Cloudstone Curio and Carnival of Souls
12. Resolve the Cloudstone Curio trigger, returning Hateful Eidolon from the battlefield to your hand
13. Resolve the Carnival of Souls trigger, causing you to lose 1 life and add
14. Cast Hateful Eidolon by paying
15. Keimi triggers, causing each opponent to lose 1 life and you to gain 1 life
16. Repeat from step 6

Results

• Infinite ETB
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite LTB
• Infinite storm count