Agatha of the Vile Cauldron, Phyrexian Altar, and Wren's Run Packmaster

Prerequisites

• Agatha of the Vile Cauldron on the battlefield
• Phyrexian Altar on the battlefield
• Wren's Run Packmaster on the battlefield
• Agatha of the Vile Cauldron has power 2 or greater
• available

Steps

1. Activate Wren's Run Packmaster by paying due to Agatha of the Vile Cauldron, creating a 2/2 Wolf creature token
2. Activate Phyrexian Altar by sacrificing the Wolf, adding
3. Repeat

Results

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