Blood Pet, Mortuary, and Species Specialist

Prerequisites

• Blood Pet on the battlefield
• Mortuary on the battlefield
• Species Specialist on the battlefield
• "Thrull" chosen with Species Specialist

Steps

1. Activate Blood Pet by sacrificing itself, adding
2. Blood Pet dies, triggering Species Specialist and Mortuary
3. Resolve the Mortuary trigger, putting Blood Pet on top of your library from your graveyard
4. Resolve the Species Specialist trigger, causing you to draw Blood Pet
5. Cast Blood Pet by paying
6. Repeat

Results

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