Nim Deathmantle, Ashnod's Altar, and Jiang Yanggu, Never Alone

Prerequisites

• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• Jiang Yanggu, Never Alone on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Jiang Yanggu, adding
2. When Jiang Yanggu dies, Nim Deathmantle triggers, causing you to pay to return Jiang Yanggu from your graveyard to the battlefield and attach Nim Deathmantle to it
3. When Jiang Yanggu enters, it triggers, creating a creature token
4. Activate Ashnod's Altar by sacrificing a creature token, adding
5. Repeat

Results

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