Kuldotha Phoenix, Ashnod's Altar, and Sifter of Skulls

Prerequisites

• Kuldotha Phoenix on the battlefield
• Ashnod's Altar on the battlefield
• Sifter of Skulls on the battlefield
• It is your upkeep step
• You control at least three artifacts

Steps

1. During your upkeep, activate Ashnod's Altar by sacrificing Kuldotha Phoenix, adding
2. When Kuldotha Phoenix dies, Sifter of Skulls triggers, creating a 1/1 Eldrazi Scion creature token
3. Activate Ashnod's Altar by sacrificing the Eldrazi Scion, adding
4. Activate Kuldotha Phoenix by paying , returning it from your graveyard to the battlefield
5. Repeat

Results

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