Phyrexian Altar, and Uncivil Unrest

Prerequisites

• Phyrexian Altar on the battlefield
• Uncivil Unrest on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing the persist creature
2. When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to Uncivil Unrest
3. Repeat

Results

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