Vesperlark, Body Double, and Ashnod's Altar

Prerequisites

• Vesperlark in the graveyard
• Body Double on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Body Double, adding
2. Body Double leaves the battlefield, returning itself from your graveyard to the battlefield as a copy of Vesperlark
3. Repeat

Results

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