Bhaal, Lord of Murder, Persistent Specimen, Cryptic Trilobite, and Phyrexian Altar

Prerequisites

• Bhaal, Lord of Murder on the battlefield
• Persistent Specimen on the battlefield
• Cryptic Trilobite on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Persistent Specimen, adding
2. When Persistent Specimen dies, Bhaal triggers, putting a +1/+1 counter on Cryptic Trilobite and goading it
3. Activate Cryptic Trilobite by removing a +1/+1 counter from it, adding that can only be spent to activate abilities
4. Activate Persistent Specimen by paying , returning it from your graveyard to the battlefield tapped
5. Repeat

Results

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