Mondrak, Glory Dominus, Phyrexian Altar, and Sacred Mesa

Prerequisites

• Mondrak, Glory Dominus on the battlefield
• Phyrexian Altar on the battlefield
• Sacred Mesa on the battlefield
• available

Steps

1. Activate Sacred Mesa by paying , creating two 1/1 Pegasus creature tokens
2. Activate Phyrexian Altar twice by sacrificing both Pegasus, adding
3. Repeat

Results

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