Zul Ashur, Lich Lord, Intruder Alarm, and Umbral Collar Zealot

Prerequisites

• Zul Ashur, Lich Lord on the battlefield
• Intruder Alarm on the battlefield
• Umbral Collar Zealot on the battlefield

Steps

1. Activate Zul Ashur by tapping it, targeting a Zombie card in your graveyard
2. Activate any number of creatures you control by tapping them, adding enough mana to cast the Zombie
3. Cast the Zombie from your graveyard by paying its mana cost
4. When the Zombie enters the battlefield, Intruder Alarm triggers, untapping all creatures
5. Activate Umbral Collar Zealot by sacrificing the Zombie, putting a +1/+1 counter on Umbral Collar Zealot
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Infinite mana creatures you control can produce
• Infinite untap of all creatures
• Infinite surveil 1