Bhaal, Lord of Murder, Cult Conscript, Crystalline Crawler, and Phyrexian Altar

Prerequisites

• Bhaal, Lord of Murder on the battlefield
• Cult Conscript on the battlefield
• Crystalline Crawler on the battlefield
• Phyrexian Altar on the battlefield
• A non-Skeleton creature has died under your control this turn

Steps

1. Activate Phyrexian Altar by sacrificing Cult Conscript, adding
2. When Cult Conscript dies, Bhaal triggers, putting a +1/+1 counter on Crystalline Crawler and goading it
3. Activate Crystalline Crawler's first ability by removing a +1/+1 counter from it, adding
4. Activate Cult Conscript by paying , returning it from your graveyard to the battlefield tapped
5. Repeat

Results

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