Illuminor Szeras, Intruder Alarm, and Gravewaker

Prerequisites

• Illuminor Szeras on the battlefield
• Intruder Alarm on the battlefield
• Gravewaker on the battlefield
• Illuminor Szeras does not have summoning sickness
• You control another nontoken creature with mana value eight or greater

Steps

1. Activate Illuminor Szeras by tapping it and sacrificing a nontoken creature with mana value eight or greater, adding at least eight
2. Activate Gravewaker by paying , returning the creature with mana value eight or greater from your graveyard to the battlefield
3. The creature enters the battlefield, triggering Intruder Alarm, untapping all creatures
4. Repeat

Results

• Infinite black mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures