Danitha, Benalia's Hope, Yahenni, Undying Partisan, and False Demise

Prerequisites

• Danitha, Benalia's Hope on the battlefield
• Yahenni, Undying Partisan on the battlefield
• False Demise on the battlefield
• False Demise attached to Danitha

Steps

1. Activate Yahenni by sacrificing Danitha
2. When Danitha dies, False Demise triggers, returning Danitha from your graveyard to the battlefield tapped
3. When Danitha enters the battlefield, it triggers, returning False Demise from your graveyard to the battlefield attached to Danitha
4. Resolve the Yahenni ability
5. Repeat

Results

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