Long Feng, Grand Secretariat, Herd Baloth, and Yahenni, Undying Partisan

Prerequisites

• Long Feng, Grand Secretariat on the battlefield
• Herd Baloth on the battlefield
• Yahenni, Undying Partisan on the battlefield

Steps

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

Results

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