Chainer, Dementia Master, Grave Titan, Phyrexian Altar, and Susurian Voidborn

Prerequisites

• Chainer, Dementia Master on the battlefield
• Grave Titan on the battlefield
• Phyrexian Altar on the battlefield
• Susurian Voidborn on the battlefield
• available

Steps

1. Activate Chainer by paying and 3 life, returning Grave Titan from your graveyard to the battlefield
2. When Grave Titan enters, it triggers, creating two 2/2 Zombie creature tokens
3. Activate Phyrexian Altar three times by sacrificing Grave Titan and the two Zombies, adding When Grave Titan and the Zombie tokens die, Susurian Voidborn triggers three times, causing you to gain 1 life and target opponent to lose 1 life for each trigger
4. Repeat

Results

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