Missy, Phyrexian Altar, and Voidmage Prodigy

Prerequisites

• Missy on the battlefield
• Phyrexian Altar on the battlefield
• Voidmage Prodigy on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Voidmage Prodigy, adding
2. When Voidmage Prodigy dies, Missy's first ability triggers, returning Voidmage Prodigy from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature
3. Activate Voidmage Prodigy's morph ability by paying , turning it face up
4. Repeat

Results

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