Phyrexian Triniform, Nim Deathmantle, and Phyrexian Altar

Prerequisites

• Phyrexian Triniform on the battlefield
• Nim Deathmantle on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Sacrifice Phyrexian Triniform to Phyrexian Altar to add of any color
2. Phyrexian Triniform and Nim Deathmantle both trigger
3. Resolve Phyrexian Triniform's ability first, creating three Golem artifact creatures
4. Sacrifice all three Geolems to Phyrexian Altar to add a total of 3 of any color
5. Resolve the Nim Deathmantle trigger, paying the to return Phyrexian Triniform to the battlefield with Nim Deathmantle equipped
6. Repeat for infinite ETB and LTB

Results

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