Chainer, Dementia Master, Wurmcoil Engine, Phyrexian Altar, and Proper Burial

Prerequisites

• Chainer, Dementia Master on the battlefield
• Wurmcoil Engine on the battlefield
• Phyrexian Altar on the battlefield
• Proper Burial on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Wurmcoil Engine, adding
2. When Wurmcoil Engine dies, it and Proper Burial trigger
3. Resolve the Wurmcoil Engine trigger, creating two 3/3 Wurm artifact creature tokens
4. Resolve the Proper Burial trigger, causing you to gain life equal to Wurmcoil Engine's toughness
5. Activate Phyrexian Altar twice by sacrificing the Wurm tokens, adding
6. When the Wurms die, Proper Burial trigger twice, causing you to gain life equal to the Wurms' combined toughness
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
• Infinite lifegain