Hua Tuo, Honored Physician, Verdant Succession, Intruder Alarm, and Umbral Collar Zealot

Prerequisites

• Hua Tuo, Honored Physician on the battlefield
• Verdant Succession on the battlefield
• Intruder Alarm on the battlefield
• Umbral Collar Zealot on the battlefield

Steps

1. During your precombat main phase, activate Umbral Collar Zealot by sacrificing the additional nontoken green creature
2. When the creature dies, Verdant Succession triggers
3. Holding priority, activate Hua Tuo by tapping it, putting the creature from your graveyard onto the top of your library
4. Resolve the Verdant Succession trigger, searching your library for the sacrificed creature and putting it onto the battlefield
5. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures
6. Resolve the Umbral Collar Zealot ability from step 1, putting a +1/+1 counter on it
7. Repeat

Results

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