Deathrender, Spinner of Souls, and Phyrexian Altar

Prerequisites

• Deathrender on the battlefield
• Spinner of Souls on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing the creature with Deathrender attached
2. When the creature dies, Spinner of Souls and Deathrender trigger
3. Resolve the Spinner of Souls trigger, putting another creature card from your library into your hand
4. Resolve the Deathrender trigger, putting a creature from your hand onto the battlefield and attaching Deathrender to it
5. Resolve the Phyrexian Altar ability
6. Repeat

Results

• Near-infinite ETB
• Near-infinite LTB
• Near-infinite colored mana
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Put all creature cards in your library onto the battlefield, then into your graveyard