Necroduality, Rot Hulk, and Rot-Tide Gargantua

Prerequisites

• Necroduality on the battlefield
• Rot Hulk in hand
• Rot-Tide Gargantua in the graveyard
• available

Steps

1. Cast Rot Hulk by paying
2. When Rot Hulk enters, it and Necroduality trigger
3. Resolve the Rot Hulk trigger, returning Rot-Tide Gargantua from your graveyard to the battlefield
4. When Rot-Tide Gargantua enters, it and Necroduality trigger
5. Resolve the Rot-Tide Gargantua trigger, sacrificing it
6. When Rot-Tide Gargantua is exploited, Rot-Tide Gargantua triggers, causing each opponent to sacrifice a creature
7. Resolve the Necroduality trigger, creating a token copy of Rot-Tide Gargantua
8. When the token Rot-Tide Gargantua enters, it triggers, sacrificing Rot Hulk
9. When Rot Hulk is exploited, Rot-Tide Gargantua triggers, causing each opponent to sacrifice a creature
10. Resolve the Necroduality trigger from step 2, creating a token copy of Rot Hulk
11. When the token Rot Hulk enters, it triggers, returning Rot Hulk from your graveyard to the battlefield
12. Repeat from step 2

Results

• Each opponent sacrifices all creatures they control
• Infinite ETB
• Infinite LTB
• Infinite creature tokens
• Infinite death triggers
• Infinite sacrifice triggers
• Return some creature cards from your graveyard to the battlefield