Bloodsoaked Champion, Ashnod's Altar, Life Insurance, and Zulaport Cutthroat

Prerequisites

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

Results

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