Ashnod's Altar, Falkenrath Noble, Life Insurance, and Bloodsoaked Champion

Prerequisites

• Ashnod's Altar on the battlefield
• Falkenrath Noble on the battlefield
• Life Insurance on the battlefield
• Bloodsoaked Champion on the battlefield
• You attacked with a creature this turn

Steps

1. Activate Ashnod's Altar by sacrificing Bloodsoaked Champion, adding
2. Life Insurance and Falkenrath Noble triggers
3. Resolve the Life Insurance trigger, causing you to lose 1 life and creating a Treasure token Resolve the Falkenrath Noble trigger, causing target player to lose 1 life and gaining you 1 life
4. Activate Treasure token by tapping and sacrificing itself, adding
5. Activate Bloodsoaked Champion by paying , returning it to the battlefield
6. Repeat

Results

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