Vizier of Remedies, Wingrattle Scarecrow, and Phyrexian Altar

Prerequisites

• Vizier of Remedies on the battlefield
• Wingrattle Scarecrow on the battlefield
• Phyrexian Altar on the battlefield
• You control a black creature

Steps

1. Activate Phyrexian Altar by sacrificing Wingrattle Scarecrow, adding one mana of any color
2. Wingrattle Scarecrow's persist ability triggers, returning it from your graveyard to the battlefield with zero -1/-1 counters due to Vizier of Remedies
3. Repeat

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers