Knight of Doves, Enchanted Evening, and Ashnod's Altar

Prerequisites

• Knight of Doves on the battlefield
• Enchanted Evening on the battlefield
• Ashnod's Altar on the battlefield
• You control at least one additional creature

Steps

1. Activate Ashnod's Altar by sacrificing another creature, adding
2. When the creature dies as an enchantment due to Enchanted Evening, Knight of Doves triggers, creating a 1/1 Bird creature token
3. Repeat

Results

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