Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Vizier of Remedies, and Morgue Toad

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Vizier of Remedies on the battlefield
• Morgue Toad on the battlefield

Steps

1. Activate Morgue Toad by sacrificing it
2. When Morgue Toad dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Vizier of Remedies
3. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite blue mana
• Infinite death triggers
• Infinite red mana
• Infinite sacrifice triggers