Chainer, Dementia Master, Wurmcoil Engine, Phyrexian Altar, and Panicked Bystander // Cackling Culprit

Prerequisites

• Chainer, Dementia Master on the battlefield
• Wurmcoil Engine on the battlefield
• Phyrexian Altar on the battlefield
• Panicked Bystander // Cackling Culprit on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Wurmcoil Engine, adding
2. When Wurmcoil Engine dies, it and Panicked Bystander // Cackling Culprit trigger
3. Resolve the Wurmcoil Engine trigger, creating two 3/3 Wurm artifact creature tokens
4. Resolve the Panicked Bystander // Cackling Culprit trigger, causing you to gain 1 life
5. Activate Phyrexian Altar twice by sacrificing the Wurm tokens, adding
6. When the Wurms die, Panicked Bystander // Cackling Culprit trigger twice, causing you to gain 2 life
7. Activate Chainer by paying and 3 life, putting Wurmcoil Engine from your graveyard onto the battlefield
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifegain triggers