Darien, King of Kjeldor, Havoc Jester, Phantom Train, and South Wind Avatar

Prerequisites

• Darien, King of Kjeldor on the battlefield
• Havoc Jester on the battlefield
• Phantom Train on the battlefield
• South Wind Avatar on the battlefield

Steps

1. Activate Phantom Train by sacrificing a creature When the creature dies, South Wind Avatar and Havoc Jester trigger
2. Resolve the South Wind Avatar trigger, causing you to gain life
3. Its second ability then triggers, causing each opponent to lose 1 life Resolve the Havoc Jester trigger, dealing 1 damage to you
4. Darien triggers, creating a 1/1 Soldier creature token
5. Resolve the Phantom Train ability, putting a +1/+1 counter on it and causing it to become a Spirit artifact creature in addition to its other types until end of turn
6. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite lifeloss