Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Vizier of Remedies, and Phyrexian Dreadnought

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Vizier of Remedies on the battlefield
• Phyrexian Dreadnought in hand
• available

Steps

1. Cast Phyrexian Dreadnought by paying its mana cost
2. When Phyrexian Dreadnought enters, it triggers, causing you to sacrifice it
3. When Phyrexian Dreadnought 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
4. Repeat from step 2

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers