Long Feng, Grand Secretariat, Altar of Dementia, and Scurry Oak

Prerequisites

• Long Feng, Grand Secretariat on the battlefield
• Altar of Dementia on the battlefield
• Scurry Oak on the battlefield

Steps

1. Put a +1/+1 counter on Scurry Oak Scurry Oak triggers, creating a creature token
2. Activate Altar of Dementia by sacrificing the creature token
3. When the creature token dies, Lord Feng triggers, putting a +1/+1 counter on Scurry Oak
4. Scurry Oak triggers, creating a creature token
5. Resolve the Altar of Dementia ability
6. Repeat from step 3

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite mill
• Infinite self-mill
• Infinite +1/+1 counters on a creature