Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Vizier of Remedies, and Sidisi, Undead Vizier

Prerequisites

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

Steps

1. Cast Sidisi by paying its mana cost
2. When Sidisi enters, its exploit ability triggers, causing you to sacrifice it
3. When Sidisi dies, its persist ability and second innate ability trigger
4. Resolve the second trigger, searching your library for a card and putting it into your hand
5. Resolve the persist trigger, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Vizier of Remedies
6. Repeat from step 2

Results

• Infinite ETB
• Infinite LTB
• Infinite card draw
• Infinite death triggers
• Infinite sacrifice triggers