Luminous Broodmoth, Phyrexian Altar, and Bloodsoaked Champion

Prerequisites

• Luminous Broodmoth on the battlefield
• Phyrexian Altar on the battlefield
• Bloodsoaked Champion on the battlefield
• You have attacked this turn

Steps

1. Activate Phyrexian Altar by sacrificing Bloodsoaked Champion, adding
2. When Bloodsoaked Champion dies, Luminous Broodmoth triggers, returning Bloodsoaked Champion from your graveyard to the battlefield with a flying counter on it
3. Activate Phyrexian Altar by sacrificing Bloodsoaked Champion, adding
4. Activate Bloodsoaked Champion by paying , returning it from your graveyard to the battlefield
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers