Vesperlark, Glasspool Mimic // Glasspool Shore, and Phyrexian Altar

Prerequisites

• Vesperlark on the battlefield
• Glasspool Mimic // Glasspool Shore on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Glasspool Mimic, adding one mana of any color
2. When Glasspool Mimic dies, it triggers, returning itself from your graveyard to the battlefield as a copy of Vesperlark
3. Repeat

Results

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