Danitha, Benalia's Hope, Phyrexian Altar, and Changing Loyalty

Prerequisites

• Danitha, Benalia's Hope on the battlefield
• Phyrexian Altar on the battlefield
• Changing Loyalty on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Danitha When Danitha dies, Changing Loyalty triggers, returning Danitha from your graveyard to the battlefield tapped
2. When Danitha enters the battlefield, it triggers, returning Changing Loyalty from your graveyard to the battlefield attached to Danitha
3. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite colored mana
• Infinite death triggers
• Infinite sacrifice triggers