Verdant Succession, Serra Avatar, Phyrexian Altar, and Painter's Servant

Prerequisites

• Verdant Succession on the battlefield
• Serra Avatar on the battlefield
• Phyrexian Altar on the battlefield
• Painter's Servant on the battlefield
• "Green" chosen with Painter's Servant

Steps

1. Activate Phyrexian Altar by sacrificing Serra Avatar, adding one mana of any color
2. Serra Avatar and Verdant Succession trigger
3. Resolve the Serra Avatar trigger, shuffling it into your library
4. Resolve the Verdant Succession trigger, searching your library for Serra Avatar, putting it onto the battlefield and shuffling your library
5. Repeat

Results

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