Shrieking Drake, Phyrexian Altar, and God-Eternal Oketra

Prerequisites

• Shrieking Drake in hand
• Phyrexian Altar on the battlefield
• God-Eternal Oketra on the battlefield
• available

Steps

1. Cast Shrieking Drake by paying
2. God-Eternal Oketra triggers, creating a creature token
3. When Shrieking Drake enters the battlefield, it triggers, returning itself from the battlefield to your hand
4. Activate Phyrexian Altar by sacrificing the creature token, adding
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count