Nim Deathmantle, Ashnod's Altar, and Woe Strider

Prerequisites

• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• Woe Strider on the battlefield
• available

Steps

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

Results

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