Darien, King of Kjeldor, Havoc Jester, Umbral Collar Zealot, and Cruel Celebrant

Prerequisites

• Darien, King of Kjeldor on the battlefield
• Havoc Jester on the battlefield
• Umbral Collar Zealot on the battlefield
• Cruel Celebrant on the battlefield

Steps

1. Activate Umbral Collar Zealot by sacrificing a creature When the creature dies, Cruel Celebrant and Havoc Jester trigger
2. Resolve the Cruel Celebrant trigger, causing you to gain 1 life and each opponent to lose 1 life Resolve the Havoc Jester trigger, dealing 1 damage to you
3. Darien triggers, creating a 1/1 Soldier creature token
4. Resolve the Umbral Collar Zealot ability, surveiling 1
5. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite surveil